Books like I Am Gifted, So Are You!
Adam Khoo
I Am Gifted, So Are You! is 284 pages, about 5 hours 12 minutes at 250 words a minute.
6 books to read next
How long each takes
Design for How People Learn 5.6 h 
Use Your Head 2.9 h 
Principles of Instructional Design 6.2 h 
Critical Thinking 9.2 h 
Teach Yourself How to Learn 3.2 h 
Superlearning 6.4 h Bar height shows length. Estimated at 250 words a minute.