Condition your brain just as you do your body with this entertaining and challenging "exercise program" designed to strengthen, tone, and develop your "mental muscles."
An amazing book for people who want to develop their imagination and other powers of thought. Read this one back in the 90s and still practice some of the exercises there. Wow. Some of them are crazy effective, and I still find myself doing them in those quiet moments like standing in line, long flights, boring meetings, etc. Gives you the background and thinking behind why it's so beneficial to be able to visualize increasingly complex objects (Nikola Tesla style!) anytime you wish...to expand your working memory and accomplish mentally what most others need a computer or drawing pad for. If this gem is out of print, digital PDFs might be findable online.