Updated section contents

dabeaz · dabeaz · commit 08f982aa1f85 · 2020-05-26T17:09:43.000-05:00
diff --git a/Notes/01_Introduction/00_Overview.md b/Notes/01_Introduction/00_Overview.md
@@ -5,13 +5,13 @@ the ground up.  Starting with nothing, you'll learn how to edit, run,
 and debug small programs. Ultimately, you'll write a short script that
 reads a CSV data file and performs a simple calculation.  
 
-* [1. Introducing Python](01_Python)
-* [2. A First Program](02_Hello_world)
-* [3. Numbers](03_Numbers)
-* [4. Strings](04_Strings)
-* [5. Lists](05_Lists)
-* [6. Files](06_Files)
-* [7. Functions](07_Functions)
+* [1.1 Introducing Python](01_Python)
+* [1.2 A First Program](02_Hello_world)
+* [1.3 Numbers](03_Numbers)
+* [1.4 Strings](04_Strings)
+* [1.5 Lists](05_Lists)
+* [1.6 Files](06_Files)
+* [1.7 Functions](07_Functions)
 
 [Contents](../Contents)
 
diff --git a/Notes/02_Working_with_data/00_Overview.md b/Notes/02_Working_with_data/00_Overview.md
@@ -1,7 +1,17 @@
-# Working With Data Overview
+# 2. Working With Data
 
-In this section, we look at how Python programmers represent and work with data.
+To write useful programs, you need to be able to work with data.
+This section introduces Python's core data structures of tuples,
+lists, sets, and dictionaries and discusses common data handling
+idioms.  The last part of this section dives a little deeper
+into Python's underlying object model.
 
-Most programs today work with data. We are going to learn to common programming idioms and how to not shoot yourself in the foot.
+* [2.1 Datatypes and Data Structures](01_Datatypes)
+* [2.2 Containers](02_Containers)
+* [2.3 Formatted Output](03_Formatting)
+* [2.4 Sequences](04_Sequences)
+* [2.5 Collections module](05_Collections)
+* [2.6 List comprehensions](06_List_comprehension)
+* [2.7 Object model](07_Objects)
 
-We will take a look at part of the object-model in Python. Which is a big part of understanding most Python programs.
+[Contents](../Contents)
