If there’s one thing I loved as a kid, it was doing puzzle books, activity books, word searches, and things that made me think and learn. And to this day, I still enjoy them, and work them everyday (like Sudoku). So if you want your kid to be a geek, smart, or a curious thinker outside of the box, then invest in a neverending supply of puzzles, games, and memory activity books. You will never regret it.
So below is a share of some of the most fun, and most hardest books to challenge any youth, ranging from 1st grade on up. Get their brains playing, and they will educate themselves.