This page is bare because I haven't opened a robotics textbook, let alone a textbook, in years.

You might want to checkout:

Professor Peter Corke's favorite robotics books compilation
Robotics books recommended by @Varun-GP

Lego

❤️ The Unofficial LEGO Technic Builder's Guide, 2nd Edition, Pawel Sariel Kmiec
❤️ Any picture book by Yoshihito Isogawa

Electronics

Practical Electronics for Inventors, Paul Scherz
The Art of Electronics, Paul Horowitz

Algorithms

The Algorithm Design Manual, Steven Skien
Algorithms, Robert Sedgewick and Kevin Wayne
Grokking Algorithms, Aditya Bhargava
Introduction to Algorithms, Thomas Cormen and Charles Leiserson

Mechanics

Basic Machines and How They Work, Prepared by Bureau of Naval Personnel
Engineering Dynamics: A Comprehensive Introduction, N. Jeremy Kasdin et al
Vector Mechanics for Engineers: Statics and Dynamics, Ferdinand P. Beer et al
❤️ More books related to Machine Design

Artifical Intelligence

Artificial Intelligence: A Modern Approach, Stuart Russell and Peter Norvig