Most of us know that we can't just workout our bodies to be healthy and energized. We also need to exercise that squishy guy called our brain! If you're a number guy or gal, then you could simply do math problems at your desk to keep your brain engaged. But what if you want something different? Give your brain a serious workout by doing all 52 puzzles in this custom Soduku book!

As the story goes, Soduku was invented in the 70s by a freelance puzzle creator. Now millions of people are putting numbers 1 to 9 in just the right box! Each of these puzzle books includes:

• colorful cover splashed with the words "Soduku Challenge"
• 52 Soduku puzzles (medium difficulty)
• book measures 5.5" W x 8.5" H
• your design printed in 1 free color on the front cover
• design fits in a 3.5" W x 2" H area

These custom Soduku books were created by Sharp Mind Games, a big name in the world of word puzzles. You know your brain will be challenged by every page! When you're waiting for a doctor's appointment or board at a meeting, don't scroll aimlessly on your smartphone! Do a Soduku puzzle!