diff --git a/HISTORY.md b/HISTORY.md
index 51a5fdbcd..ea238ebfa 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -69,7 +69,7 @@ As such, a _Feature_ would map to either major (breaking change) or minor. A _bu
     The old `mf_debug` and `mf_log` main mixin is presevered.  Needs documentation. See #113. (Benjamin Fleischer, a49bfdd182)
   * Use *launchy* (new dependency) when opening output files. (Nick Veys, #224)
   * Coverage formatter now behaves like SimpleCov; it ignores certain lines in
-    calculating the precent run. Fixes #153, #222 (Benjamin Fleischer, #226).
+    calculating the percent run. Fixes #153, #222 (Benjamin Fleischer, #226).
     - Thanks to @crv for the test in #153
     - Note: JRuby will usually report different Coverage from MRI. This is a known issue.
     - Note: This technically is a *breaking change* from how RCov works. But wwe don't run RCov anymore. (65bf21723291f)
@@ -86,7 +86,7 @@ As such, a _Feature_ would map to either major (breaking change) or minor. A _bu
   * Rename ReekHotspot to MetricFu::ReekHotspot.  Was missing namespace. (Benjamin Fleischer, a3aa70c1a9)
   * Allow failures for Ruby 2.1, in addition to rbx per issues with rvm.  (Benjamin Fleischer, 3018b22)
   * `spec/quality_spec.rb` checks for whitespace, tabs, quotes, etc. `rake spec` also checks for warnings. (Benjamin Fleischer, b0c51bb9b17)
-  * When run with COVERAGE=true, will ouptut a file to `coverage/coverage_percent.txt` that can be checked via `rake check_code_coverage`. Borrowed from VCR. (Benjamin Fleischer, 32df3a34c6)
+  * When run with COVERAGE=true, will output a file to `coverage/coverage_percent.txt` that can be checked via `rake check_code_coverage`. Borrowed from VCR. (Benjamin Fleischer, 32df3a34c6)
 
 ### [4.10.0 / 2014-04-01](https://github.com/metricfu/metric_fu/compare/v4.9.0...v4.10.0)
 
@@ -284,7 +284,7 @@ add all contriubtors
   * Skip reek when no files are found to run against.  Otherwise, reek hangs trying to read from STDIN (Benjamin Fleischer, #119, #121)
   * Reek will now find files on Windows.  Remove *nix-specific '/' directory separators from Reek file glob.  (Benjamin Fleischer, #119, #121)
   * Link to correct reek url on report. (Calveto #116)
-  * Hack to accomodate Rails Best Practices dependency Code Analyzer monkey patch of Sexp (Benjamin Fleischer #123, #124)
+  * Hack to accommodate Rails Best Practices dependency Code Analyzer monkey patch of Sexp (Benjamin Fleischer #123, #124)
 * Misc
   * Moved environmental concerns into an Environment module ( Benjamin Fleischer / Robin Curry #91, #111)
   * Exposed RubyParser patch ( Benjamin Fleischer / Robin Curry #91, #111)
@@ -435,7 +435,7 @@ add all contriubtors
   * MetricFu::MetricAnalyzer
   * MetricFu::AnalysisError
   * MetricFu::HotspotScoringStrategies
-* Rename MetricAnalyzer to HotspotAnalyzer, and rename all <metric>Analzyer classes to <metric>Hotspot to signify that they are part of the Hotspot code -Benjamin Fleischer
+* Rename MetricAnalyzer to HotspotAnalyzer, and rename all <metric>Analyzer classes to <metric>Hotspot to signify that they are part of the Hotspot code -Benjamin Fleischer
 
 ### MetricFu 2.1.3.4 / 2012-12-28
 
diff --git a/TODO.md b/TODO.md
index 6d5dca193..f64128657 100644
--- a/TODO.md
+++ b/TODO.md
@@ -73,13 +73,13 @@ instance variables and accessors
 
 * Look into issues for the tools metric_fu uses
 * Look into other tools that might work well
-* Update contributing or issue guidlines
+* Update contributing or issue guidelines
 * Suggest commit message guidelines
 * [Update the homepage](https://github.com/metricfu/metricfu.github.com)
 
 ## Future Thoughts
 
-* Look into how to manage plugins or otherwise load abritrary metrics
+* Look into how to manage plugins or otherwise load arbitrary metrics
   * [Hoe](https://github.com/seattlerb/hoe/blob/master/lib/hoe.rb#L301)
   * CLI [Flog](https://github.com/seattlerb/flog/blob/master/lib/flog_cli.rb) Plugins [Flog](https://github.com/seattlerb/flog/blob/master/lib/flog_cli.rb#L34)
 * Look into adding
@@ -87,7 +87,7 @@ instance variables and accessors
     * or extract from rails into a gem [rake task](https://github.com/rails/rails/blob/master/railties/lib/rails/tasks/statistics.rake) [can be modified by rspec](https://github.com/rspec/rspec-rails/blob/master/lib/rspec/rails/tasks/rspec.rake#L38) with the [calculator](https://github.com/rails/rails/blob/master/railties/lib/rails/code_statistics_calculator.rb) and [class](https://github.com/rails/rails/blob/master/railties/lib/rails/code_statistics.rb)
   * brakeman https://github.com/metricfu/brakeman
   * laser https://github.com/metricfu/laser
-* Other intersting libraries to consider:
+* Other interesting libraries to consider:
   * https://gist.github.com/4562865 for generating Flog on ERB templates by jamesmartin
   * https://github.com/chad/turbulence churn and complexity (flog)
   * https://github.com/vinibaggio/discover-unused-partials
diff --git a/lib/metric_fu/data_structures/location.rb b/lib/metric_fu/data_structures/location.rb
index 044b2fbed..b1fa9c894 100644
--- a/lib/metric_fu/data_structures/location.rb
+++ b/lib/metric_fu/data_structures/location.rb
@@ -62,7 +62,7 @@ def self.for(class_or_method_name)
         begin
           match = class_or_method_name.match(/(.*)((\.|\#|\:\:[a-z])(.+))/)
         rescue => error
-          # new error during port to metric_fu occasionally a unintialized
+          # new error during port to metric_fu occasionally a uninitialized
           # MatchData object shows up here. Not expected.
           mf_debug "ERROR on getting location for #{class_or_method_name} #{error.inspect}"
           match = nil
diff --git a/lib/metric_fu/generator.rb b/lib/metric_fu/generator.rb
index f1c840de7..7e1fd1d08 100644
--- a/lib/metric_fu/generator.rb
+++ b/lib/metric_fu/generator.rb
@@ -26,7 +26,7 @@ module MetricFu
   # named after the metric under the scratch_directory, where
   # any output from the #emit method should go.
   #
-  # It will also create the output_directory if neccessary, and
+  # It will also create the output_directory if necessary, and
   # in general setup the directory structure that the MetricFu system
   # expects.
   class Generator
diff --git a/lib/metric_fu/metrics/flay/hotspot.rb b/lib/metric_fu/metrics/flay/hotspot.rb
index 05d203347..e8e17b04c 100644
--- a/lib/metric_fu/metrics/flay/hotspot.rb
+++ b/lib/metric_fu/metrics/flay/hotspot.rb
@@ -46,7 +46,7 @@ def generate_records(data, table)
   end
 
   def present_group(group)
-    occurences = group.size
-    "found #{occurences} code duplications"
+    occurrences = group.size
+    "found #{occurrences} code duplications"
   end
 end
diff --git a/lib/metric_fu/metrics/flog/hotspot.rb b/lib/metric_fu/metrics/flog/hotspot.rb
index 0da92583d..54a507ab2 100644
--- a/lib/metric_fu/metrics/flog/hotspot.rb
+++ b/lib/metric_fu/metrics/flog/hotspot.rb
@@ -39,8 +39,8 @@ def generate_records(data, table)
   end
 
   def present_group(group)
-    occurences = group.size
+    occurrences = group.size
     complexity = get_mean(group.column("score"))
-    "#{'average ' if occurences > 1}complexity is %.1f" % complexity
+    "#{'average ' if occurrences > 1}complexity is %.1f" % complexity
   end
 end
diff --git a/lib/metric_fu/metrics/rcov/hotspot.rb b/lib/metric_fu/metrics/rcov/hotspot.rb
index 04541fc58..b569614ab 100644
--- a/lib/metric_fu/metrics/rcov/hotspot.rb
+++ b/lib/metric_fu/metrics/rcov/hotspot.rb
@@ -39,8 +39,8 @@ def generate_records(data, table)
   end
 
   def present_group(group)
-    occurences = group.size
+    occurrences = group.size
     average_code_uncoverage = get_mean(group.column("percentage_uncovered"))
-    "#{'average ' if occurences > 1}uncovered code is %.1f%" % average_code_uncoverage
+    "#{'average ' if occurrences > 1}uncovered code is %.1f%" % average_code_uncoverage
   end
 end
diff --git a/lib/metric_fu/metrics/reek/hotspot.rb b/lib/metric_fu/metrics/reek/hotspot.rb
index b9c97cfce..8f214725f 100644
--- a/lib/metric_fu/metrics/reek/hotspot.rb
+++ b/lib/metric_fu/metrics/reek/hotspot.rb
@@ -55,8 +55,8 @@ def self.numeric_smell?(type)
   end
 
   def present_group(group)
-    occurences = group.size
-    "found #{occurences} code smells"
+    occurrences = group.size
+    "found #{occurrences} code smells"
   end
 
   private
diff --git a/lib/metric_fu/metrics/roodi/hotspot.rb b/lib/metric_fu/metrics/roodi/hotspot.rb
index 041083137..d50920bff 100644
--- a/lib/metric_fu/metrics/roodi/hotspot.rb
+++ b/lib/metric_fu/metrics/roodi/hotspot.rb
@@ -33,7 +33,7 @@ def generate_records(data, table)
   end
 
   def present_group(group)
-    occurences = group.size
-    "found #{occurences} design problems"
+    occurrences = group.size
+    "found #{occurrences} design problems"
   end
 end
diff --git a/lib/metric_fu/metrics/saikuro/hotspot.rb b/lib/metric_fu/metrics/saikuro/hotspot.rb
index da5be8d86..47b93487d 100644
--- a/lib/metric_fu/metrics/saikuro/hotspot.rb
+++ b/lib/metric_fu/metrics/saikuro/hotspot.rb
@@ -44,8 +44,8 @@ def generate_records(data, table)
   end
 
   def present_group(group)
-    occurences = group.size
+    occurrences = group.size
     complexity = get_mean(group.column("complexity"))
-    "#{'average ' if occurences > 1}complexity is %.1f" % complexity
+    "#{'average ' if occurrences > 1}complexity is %.1f" % complexity
   end
 end
diff --git a/lib/metric_fu/metrics/saikuro/metric.rb b/lib/metric_fu/metrics/saikuro/metric.rb
index 1a1ed5dd0..0ccbef3fc 100644
--- a/lib/metric_fu/metrics/saikuro/metric.rb
+++ b/lib/metric_fu/metrics/saikuro/metric.rb
@@ -12,7 +12,7 @@ def default_run_options
         filter_cyclo: "0",
         warn_cyclo: "5",
         error_cyclo: "7",
-        formater: "text",
+        formatter: "text",
       }
     end
 
diff --git a/lib/metric_fu/templates/javascripts/bluff_graph.js b/lib/metric_fu/templates/javascripts/bluff_graph.js
index 098ffdd82..5b2279997 100644
--- a/lib/metric_fu/templates/javascripts/bluff_graph.js
+++ b/lib/metric_fu/templates/javascripts/bluff_graph.js
@@ -8,8 +8,8 @@ chart.legend_font_size = "12px";
 chart.marker_font_size = "10px";
 chart.title = graph_title;
 for(var i = 0; i < graph_series.length; i++) {
-  var serie = graph_series[i];
-  chart.data(serie.name, serie.data);
+  var series = graph_series[i];
+  chart.data(series.name, series.data);
 }
 chart.labels = graph_labels;
 chart.draw();
diff --git a/lib/metric_fu/templates/report.rb b/lib/metric_fu/templates/report.rb
index 26748b846..62143c4b7 100644
--- a/lib/metric_fu/templates/report.rb
+++ b/lib/metric_fu/templates/report.rb
@@ -7,7 +7,7 @@ module MetricFu
   module Templates
     class Report < MetricFu::Template
       # @param file [String] the analyzed file to annotate
-      # @param lines [Hash] of line number [String] keyed to an list [[Array] of metrics for that line. Each metric in the list is a hash containing the keys :type => metric_name, :descrption => metric_score
+      # @param lines [Hash] of line number [String] keyed to an list [[Array] of metrics for that line. Each metric in the list is a hash containing the keys :type => metric_name, :description => metric_score
       # @example file and lines
       #   file: "lib/metric_fu/gem_version.rb
       #   lines: {"30"=>[{:type=>:flog, :description=>"Score of 22.43"}], "42"=>[{:type=>:flog, :description=>"Score of 8.64"}]}
diff --git a/lib/metric_fu/templates/template.rb b/lib/metric_fu/templates/template.rb
index dd20d7437..f225a3e25 100644
--- a/lib/metric_fu/templates/template.rb
+++ b/lib/metric_fu/templates/template.rb
@@ -43,7 +43,7 @@ def erb_template_source(template_file)
       erb
     end
 
-    # Copies an instance variable mimicing the name of the section
+    # Copies an instance variable mimicking the name of the section
     # we are trying to render, with a value equal to the passed in
     # constant.  Allows the concrete template classes to refer to
     # that instance variable from their ERB rendering
diff --git a/spec/fixtures/20090630.yml b/spec/fixtures/20090630.yml
index 2e36a7a22..f05f63afe 100644
--- a/spec/fixtures/20090630.yml
+++ b/spec/fixtures/20090630.yml
@@ -1771,7 +1771,7 @@
     - :was_run: true
       :content: "                       :error_cyclo => \"7\","
     - :was_run: true
-      :content: "                       :formater => \"text\"}"
+      :content: "                       :formatter => \"text\"}"
     - :was_run: true
       :content: "         @churn    = {}"
     - :was_run: true
@@ -2682,7 +2682,7 @@
     - :was_run: true
       :content: "     #"
     - :was_run: true
-      :content: "     # It will also create the MetricFu.output_directory if neccessary, and"
+      :content: "     # It will also create the MetricFu.output_directory if necessary, and"
     - :was_run: true
       :content: "     # in general setup the directory structure that the MetricFu system"
     - :was_run: true
@@ -3159,7 +3159,7 @@
     - :was_run: true
       :content: "       "
     - :was_run: true
-      :content: "       # Copies an instance variable mimicing the name of the section"
+      :content: "       # Copies an instance variable mimicking the name of the section"
     - :was_run: true
       :content: "       # we are trying to render, with a value equal to the passed in "
     - :was_run: true
diff --git a/spec/metric_fu/formatter_spec.rb b/spec/metric_fu/formatter_spec.rb
index 290f988ab..e94212adf 100644
--- a/spec/metric_fu/formatter_spec.rb
+++ b/spec/metric_fu/formatter_spec.rb
@@ -38,7 +38,7 @@
       end
     end
 
-    context "given a custom formatter that doesnt exist" do
+    context "given a custom formatter that doesn't exist" do
       subject { MetricFu::Formatter.class_for("MyNonExistentCustomFormatter") }
 
       it "raises an error" do
diff --git a/spec/metric_fu/generator_spec.rb b/spec/metric_fu/generator_spec.rb
index 6835ed208..8ff5140a2 100644
--- a/spec/metric_fu/generator_spec.rb
+++ b/spec/metric_fu/generator_spec.rb
@@ -97,7 +97,7 @@ def to_h
         @container.destroy!
       end
 
-      it "should return entire pathlist given no exclude pattens" do
+      it "should return entire pathlist given no exclude patterns" do
         files = @concrete_class.remove_excluded_files(@paths)
         expect(files).to eq(@paths)
       end
diff --git a/spec/metric_fu/metrics/rails_best_practices/generator_spec.rb b/spec/metric_fu/metrics/rails_best_practices/generator_spec.rb
index a39330333..f0a09859a 100644
--- a/spec/metric_fu/metrics/rails_best_practices/generator_spec.rb
+++ b/spec/metric_fu/metrics/rails_best_practices/generator_spec.rb
@@ -14,7 +14,7 @@
 
   describe "analyze method" do
     let(:error) { ::RailsBestPractices::Core::Error.new }
-    context "RailsBestPractices provdies the expected API" do
+    context "RailsBestPractices provides the expected API" do
       it { expect(error).to respond_to :filename }
       it { expect(error).to respond_to :line_number }
       it { expect(error).to respond_to :message }
diff --git a/spec/metric_fu/metrics/rcov/simplecov_formatter_spec.rb b/spec/metric_fu/metrics/rcov/simplecov_formatter_spec.rb
index c71a8d96e..44a1ae347 100644
--- a/spec/metric_fu/metrics/rcov/simplecov_formatter_spec.rb
+++ b/spec/metric_fu/metrics/rcov/simplecov_formatter_spec.rb
@@ -42,7 +42,7 @@
         result = SimpleCov.result # end coverage
         source_file = result.source_files.first
 
-        # formatter ouputs this from simplecov result
+        # formatter outputs this from simplecov result
         rcov_text = SimpleCov::Formatter::MetricFu::FormatLikeRCov.new(result).format
 
         # generator analyzes the rcov text
diff --git a/spec/metric_fu/metrics/saikuro/configuration_spec.rb b/spec/metric_fu/metrics/saikuro/configuration_spec.rb
index 7bb6c696f..1ae957d1f 100644
--- a/spec/metric_fu/metrics/saikuro/configuration_spec.rb
+++ b/spec/metric_fu/metrics/saikuro/configuration_spec.rb
@@ -9,7 +9,7 @@
                                  :filter_cyclo => '0',
                                  :warn_cyclo => '5',
                                  :error_cyclo => '7',
-                                 :formater => 'text' }" do
+                                 :formatter => 'text' }" do
       load_metric "saikuro"
       expect(MetricFu::Metric.get_metric(:saikuro).run_options).to eq(
                output_directory: "#{scratch_directory}/saikuro",
@@ -18,7 +18,7 @@
                filter_cyclo: "0",
                warn_cyclo: "5",
                error_cyclo: "7",
-               formater: "text"
+               formatter: "text"
                     )
     end
   end
diff --git a/spec/usage_test_spec.rb b/spec/usage_test_spec.rb
index dbd6c88b9..929a4b059 100644
--- a/spec/usage_test_spec.rb
+++ b/spec/usage_test_spec.rb
@@ -63,7 +63,7 @@
       expect(test_result.success).to eq(true)
     end
     specify "fails when the command runs with an error" do
-      code = "sandwhich_fu ruby"
+      code = "sandwich_fu ruby"
       test_result = SnippetRunner.new(code, "sh").run_code
       expect(test_result.captured_output).to match(failed_command_error)
       expect(test_result.success).to eq(false)