Logical exercices for ages from 9 up to 100. To have a healthy brain we must find the way to keep it away from stress, in a harmonious state, but also we must offer it continuous challenges. One way is puzzles solving.
- Paperback | 100 pages
- 155.96 x 233.93 x 5.84mm | 213.19g
- 24 Nov 2009
- London, United Kingdom