Books like Dear Mr. Henshaw
Beverly Cleary
Dear Mr. Henshaw is 134 pages, about 2 hours 27 minutes at 250 words a minute.
12 books to read next
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Candyfloss 4.7 h 
The Wonderful Things You Will Be 37 min 
Number the Stars 2.7 h 
Millions of Cats 35 min 
Love, Aubrey 5.0 h 
P. S. Be Eleven 5.3 h Bar height shows length. Estimated at 250 words a minute.