Books like Dear Mr. Kilmer
Anne Schraff
Dear Mr. Kilmer is 134 pages, about 2 hours 27 minutes at 250 words a minute.
8 books to read next
How long each takes
The Poet X 6.6 h 
Humboldt's Gift 8.9 h Dork Diaries Collection 18.2 h 
The School for Good and Evil #3 12.4 h 
The Miscalculations of Lightning Girl 5.5 h Dork Diaries Box Set 60.4 h Silver Serpent 6.8 h 
Pretty Little Liars 12.0 h Bar height shows length. Estimated at 250 words a minute.