You will find that this activity book has a good balance of easy and hard puzzles.
Archives15 in
Chippendales 1985 Calendar 8.5″x11″ w/ 26 full page photos used calendar 260115
The illustrated table of contents makes browsing the book fun.
Our Planet by Alastair Fothergill, Keith Scholey, et al. (Hardcover, 2019)
What stands out about this edition is the illustrated chapter headings.