What literature on discrete analysis would you recommend?

Question

Books

Hello. Recently got carried away with discrete mathematics and analysis. I watched almost all of Raigorodsky's lectures and began to specialize. That is, the fundamental knowledge is already there. It came down to books. There is a huge selection on the Internet, and it is difficult to get a good enough book. I need literature on data analysis, in other words, on extreme combinatorics. Do you have recommendations for choosing a book on discrete mathematics?

Answer 1

discret.16mb.com - once upon a time I stumbled upon this resource, as for me, what I need is
Romanovsky I.V. "Discrete Analysis" - a good book at the university taught analysis from this book

Answer 2

the classics