Common Lisp Cookbook
@ https://lispcookbook.github.io/cl-cookbook/
How to do various things with Common Lisp.
Notes on Data Structures and Programming Techniques
@ https://www.cs.yale.edu/homes/aspnes/classes/223/notes.html
Course notes with extensive examples and history, along with references, for data structures in C.
Practical Common Lisp
@ https://gigamonkeys.com/book/
HTML book on LISP
The Computer Science Book
@ https://thecomputersciencebook.com/book/
Hypertext book that aims to provide main areas of a computer science degree.
Common Lisp HyperSpec
@ http://www.lispworks.com/documentation/HyperSpec/Front/index_tx.htm
Hypertext specification for Common Lisp, imperfect but interesting to explore.