TeX: The Program Computers & Typesetting, Volume B: by D Knuth

A nice touch in this textbook is the summary boxes at the end of every section.

Domain-Driven Design: Tackling Complexity In The Heart of Software ( Good )

This textbook is a bit heavy but worth it for the amount of content inside.

Business Analytics (3rd Edition) – Paperback By Evans, James R. – GOOD

What stands out about this unbranded textbook is its straightforward organization.