https://www.oreilly.com/library/view/mind-performance-hacks/...
https://www.oreilly.com/library/view/mind-hacks/0596007795/
The first covers techniques you seem to be curious about, and more.
https://www.oreilly.com/library/view/mind-performance-hacks/...
https://www.oreilly.com/library/view/mind-hacks/0596007795/
The first covers techniques you seem to be curious about, and more.