Musa Al-hassy has a very nice Elisp reference sheet. It doesn’t cover the Elisp run-time system so such as general Lisp constructs as used by Emacs. His table of contents gives a good idea of what’s covered:
- Functions
- Variables
- Block of Code
- List Manipulation
- Conditionals
- Exception Handling
- Loops
- Records
- Macros
- Hooks
Each of the sections has some explanatory test and sample code. It’s to the point and easy to read. There’s also a nicely formatted PDF that you can download or bookmark.
If you’re an Elisp n00b or want to learn it, this is a useful resource.