Mark Roepke

Remove pickles from Importing

3

This probably isn't that useful at the Introduction level, and people seemed to miss it. This may actually be a good fit for Intermediate section as it relates to saving...

Add applied data science workflow

3

We should add a slide at the beginning of each section highlighting where we are in the applied data science workflow. This will help provide context to each section and...

The left-join default and Index-as-key defaults are worth calling out as a caution

There were some questions about this and it's regularly seen online, so we should probably go over it

This will help clarify how rowwise filtering works with DataFrames

We name DataFrames differently across sections. We should decide on a naming mechanism and make all DataFrame names consistent.