Cloudly

Mathematica: A Secret World of Intuition and Curiosity- David Bessis https://www.goodreads.com/book/show/200128457-mathematica?ac... Excellent book on mathematical thinking in the true sense - what needs to happen in the mind's eye to really grapple with abstract mathematics. Definitely a eye (mind?) opener for someone who has some graduate level math education but couldn't gel with the crazier stuff.