The most famous resource is also probably one of the best. Practical Common Lisp, by Peter Siebel. https://gigamonkeys.com/book/ https://gigamonkeys.com/book/

The most famous resource is also probably one of the best. Practical Common Lisp, by Peter Siebel. https://gigamonkeys.com/book/ https://gigamonkeys.com/book/ You can read it for free. But its such a good resource I bought a hard copy and keep it within reach at all times. I like to take notes in the columns, and mark up interesting things I know I'll have to review on occasion. Last year Peter tweeted out a teaser that he might add some new content to the book, as there has been a lot of progress since this was written. But it is in no way outdated as is.