diff --git a/chapters/data-proc/data.rst b/chapters/data-proc/data.rst
new file mode 100644
index 0000000..7e41f08
--- /dev/null
+++ b/chapters/data-proc/data.rst
@@ -0,0 +1,6 @@
+.. _data_proc_data:
+
+Date structurate
+================
+
+TODO
diff --git a/chapters/data-proc/process.rst b/chapters/data-proc/process.rst
new file mode 100644
index 0000000..bcd2020
--- /dev/null
+++ b/chapters/data-proc/process.rst
@@ -0,0 +1,6 @@
+.. _data_proc_process:
+
+Sortare, agregare și alte prelucrări
+====================================
+
+TODO
diff --git a/chapters/data-proc/python.rst b/chapters/data-proc/python.rst
new file mode 100644
index 0000000..1c16d22
--- /dev/null
+++ b/chapters/data-proc/python.rst
@@ -0,0 +1,6 @@
+.. _data_proc_python:
+
+Introducere în Python
+=====================
+
+TODO
diff --git a/chapters/data-proc/select.rst b/chapters/data-proc/select.rst
new file mode 100644
index 0000000..3764d6b
--- /dev/null
+++ b/chapters/data-proc/select.rst
@@ -0,0 +1,6 @@
+.. _data_proc_select:
+
+Selectare și (re)formatare. Expresii regulate
+=============================================
+
+TODO
diff --git a/chapters/data-proc/summary.rst b/chapters/data-proc/summary.rst
new file mode 100644
index 0000000..0cdf4d6
--- /dev/null
+++ b/chapters/data-proc/summary.rst
@@ -0,0 +1,6 @@
+.. _data_proc_summary:
+
+Sumar de comenzi și secvențe de cod
+===================================
+
+TODO
diff --git a/chapters/data-proc/tasks.rst b/chapters/data-proc/tasks.rst
new file mode 100644
index 0000000..b2ac97b
--- /dev/null
+++ b/chapters/data-proc/tasks.rst
@@ -0,0 +1,6 @@
+.. _data_proc_tasks:
+
+Exerciții de prelucrare a datelor
+=================================
+
+TODO
diff --git a/chapters/data-proc/view.rst b/chapters/data-proc/view.rst
new file mode 100644
index 0000000..c618ee5
--- /dev/null
+++ b/chapters/data-proc/view.rst
@@ -0,0 +1,6 @@
+.. _data_proc_view:
+
+Vizualizare și conversie
+========================
+
+TODO
diff --git a/index.rst b/index.rst
index 3b0d1a4..3174b54 100644
--- a/index.rst
+++ b/index.rst
@@ -87,6 +87,19 @@ USO lab book
    chapters/improve-cli/improve-shell.rst
    chapters/improve-cli/term-multiplexing.rst
 
+.. toctree::
+   :numbered:
+   :maxdepth: 3
+   :caption: Prelucrarea datelor
+
+   chapters/data-proc/data.rst
+   chapters/data-proc/view.rst
+   chapters/data-proc/select.rst
+   chapters/data-proc/python.rst
+   chapters/data-proc/process.rst
+   chapters/data-proc/summary.rst
+   chapters/data-proc/tasks.rst
+
 
 Indices and tables
 ==================