Many people start the day with physical exercise but few seem to be so concerned with exercising the most human of organs-the brain. This book provides you with entertaining and challenging mental exercises for every week of the year. Whether you are a high school student eager to sharpen your brain, or someone older who would like to retain your m

chapter |70 pages

The Gym

chapter |18 pages


chapter |132 pages


chapter |10 pages


chapter |2 pages

A Friendly Afterword to the Reader

chapter |3 pages

Afterword to the English Translation