diff --git a/03_string_date_processing.Rmd b/01_string_date_processing.Rmd
similarity index 98%
rename from 03_string_date_processing.Rmd
rename to 01_string_date_processing.Rmd
index 37af9ef..671059b 100644
--- a/03_string_date_processing.Rmd
+++ b/01_string_date_processing.Rmd
@@ -1,13 +1,13 @@
-# (PART) Cleaning Data & Automating Tasks {-}
+# (PART) Cleaning & Reshaping Data {-}
 
 String & Date Processing
 ========================
 
-This chapter is part 1 (of 2) of _Cleaning Data & Automating Tasks_, a workshop
-series about how to prepare data for analysis and automate tedious repetitive
-tasks. The major topics of this chapter are how to convert dates and times into
-appropriate R data types and how to extract and clean up data from strings
-(including numbers with non-numeric characters such as `$`, `%`, and `,`).
+This chapter is part 1 (of 2) of _Cleaning & Reshaping Data_, a workshop series
+about how to prepare data for analysis. The major topics of this chapter are
+how to convert dates and times into appropriate R data types and how to extract
+and clean up data from strings (including numbers with non-numeric characters
+such as `$`, `%`, and `,`).
 
 
 #### Learning Objectives {-}
diff --git a/04_automating_tasks.Rmd b/02_reshaping_data.Rmd
similarity index 100%
rename from 04_automating_tasks.Rmd
rename to 02_reshaping_data.Rmd
diff --git a/03_writing_r_scripts.Rmd b/03_writing_r_scripts.Rmd
new file mode 100644
index 0000000..27c4430
--- /dev/null
+++ b/03_writing_r_scripts.Rmd
@@ -0,0 +1,4 @@
+# (PART) Writing & Debugging R Code {-}
+
+Best Practices for Writing R Scripts
+====================================
diff --git a/02_debugging.Rmd b/04_debugging.Rmd
similarity index 98%
rename from 02_debugging.Rmd
rename to 04_debugging.Rmd
index 7f612dc..5011bf7 100644
--- a/02_debugging.Rmd
+++ b/04_debugging.Rmd
@@ -1,10 +1,9 @@
-Output, Errors, and Bugs
-========================
+Squashing Bugs with R's Debugging Tools
+=======================================
 
-This chapter is part 2 (of 2) of _Thinking in R_, a workshop series about how R
-works and how to examine code critically. The major topics of this chapter are
-how to print output, how R's conditions system for warnings and errors works,
-how to use the R debugger, and how to estimate the performance of R code.
+The major topics of this chapter are how to print output, how R's conditions
+system for warnings and errors works, how to use the R debugger, and how to
+estimate the performance of R code.
 
 #### Learning Objectives {-}
 
diff --git a/05_visualization.Rmd b/05_visualization.Rmd
index 26c2a8b..ee53014 100644
--- a/05_visualization.Rmd
+++ b/05_visualization.Rmd
@@ -1,4 +1,4 @@
-# (PART) Data Visualization and Analysis in R {-}
+# (PART) Data Visualization & Analysis in R {-}
 
 # Data Visualization in R
 
diff --git a/01_language_fundamentals.Rmd b/06_language_fundamentals.Rmd
similarity index 100%
rename from 01_language_fundamentals.Rmd
rename to 06_language_fundamentals.Rmd
diff --git a/07_language_fundamentals_2.Rmd b/07_language_fundamentals_2.Rmd
new file mode 100644
index 0000000..972836f
--- /dev/null
+++ b/07_language_fundamentals_2.Rmd
@@ -0,0 +1,6 @@
+Part 2
+======
+
+This chapter is part 2 (of 2) of _Thinking in R_, a workshop series about how R
+works and how to examine code critically.
+