Personaly i found abcl a bad experience.
Thoughts on ecl & clisp ?
sbcl works nice & fine. But i’t’s the only lisp implementation i know.
There are good books on racket-scheme & chez-cheme.
The only book i know for lisp is, “Common lisp , a gentle introduction to symbolic computing”.
Use SBCL + QuickLisp + Emacs + Sly to follow “Practical Common Lisp” by Peter Siebel. Once you have read this book, choose whatever you like. For links, snippets and tips, look in the Common Lisp Cookbook. Happy hacking!