srinivas raghav blog's

only the russian's can give us critical thinking

was reviewing a book and was checking it's amazon review to find this review by a anonymous user. and by far it's the best thing I stumbled upon.

Mathematical Circles : Fomin Et Al: Amazon.in: Books

Arguably the best book on Problem Solving (if not the best organised). A must-have for every middle to high school child, as also for any adult who wishes to have a working brain for a change. For a more organised book, Dorichenko's "A Moscow Math Circle" is recommended. It follows in the same tradition, but with a more organised way of presenting problems so that each builds on the previous.

Along with this book, I will recommend, for anyone interested in fine-tuning their Problem Solving skills, the following books:

Get these, work them out yourself, and you will be unbeatable in Problem Solving, which extends to an absolute edge in any enterprise you undertake in life.

P.S: At these prices, it's ridiculous not to buy it. I can safely say that I would have purchased it even if it had been 10 times as expensive (such as Dorichenko's book, for instance, which I still did buy).

and this review let me go in the rabbit hole and my my. these are phenomenal books to actually build good mathematical thinking. like physics on a napkin sense!

everyone should solve and do them. and having patience and try to solve should be fun. they do have back book answers for most. which is great!