A nice touch is the illustrated copyright page with tiny animals.
Exercises for the Feynman Lectures on Physics, Feynman, Richard P., Leighton, Ro
A nice touch is the illustrated author bio at the very end.
I love how the book is illustrated with detailed and vibrant artwork.
What stands out about this activity book is the sense of accomplishment it gives.
What stands out about this activity book is how it mixes learning with fun.