Typos and somewhere in the chapter you this line "You can use labels in the same way (a character vector the same length as breaks),..." I think you are missing a word "...(a character vector "use" the same length as breaks)"
* little different to -> a little differently from
* reorder to match order in following code/table
* capitalization
* capitalization + punctuation
* replace / with or since it's hard to see between tt formatted code
* missing pronoun
* they're been -> they've been
* lets need apostrophe
* Instead of display -> Instead of displaying
* missing comma
* add mapping in front of aes in a bunch of locations
* adding mapping before aes for sections before the last section where it explicitly says from here on out we'll omit them to make calls simpler
* those extension*s*, plural
* Create one plot that combines = Create one plot where you customize -- I think this is clearer
* explanatory titles -> informative titles
* a*n* arrow
* punctuation for a new sentence
* faceting with one t
* punctuation and spelling
* insert word Figure before reference
* no need to capitalize
* avoid too many parantheses next to each other
* avoid paranthetical
* pluralization
* capitalization not needed
* clarify what's meant by more useful
* you can also set, not setting
* classes of car*s*
* avoid the word useful in two consecutive sentences
* faceting with one t
* avoid repetitive use of the word still
Garrett Grolemund
Ulrik Lyngs
yahwes
hadley
behrman
S'busiso Mkhondwane
Brett Klamer
Thomas Klebel
Patrick Kennedy
Mine Cetinkaya-Rundel