Books
https://cs.gmu.edu/~sean/book/metaheuristics/Essentials.pdf
https://cs.gmu.edu/~sean/book/metaheuristics/
https://landing.google.com/sre/
;
https://landing.google.com/sre/book.html
http://barabasi.com/f/
the School of Data Handbook
Daniel Jurafsky, James H. Martin: Speech and Language Processing / An Introduction to Natural Language Processing, Computational Linguistics, and Speech Recognition.
Third Edition draft
.