A nice touch is the illustrated thank you page from the creator.
GOLD COINS OF THE WORLD (COMPLETE FROM 600 A.D. TO THE PRESENT) 1971 FRIEDBERG!!
The illustrated margins make this a great book for slow reading.
You will find that this activity book has a good balance of easy and hard puzzles.
The book is illustrated in a way that appeals to both kids and adults.
What stands out is how every animal fact is illustrated with a drawing.