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## Appendix D Tips and Conventions

This chapter describes no additional features of Emacs Lisp. Instead it gives advice on making effective use of the features described in the previous chapters, and describes conventions Emacs Lisp programmers should follow.

You can automatically check some of the conventions described below by running the command `M-x checkdoc RET` when visiting a Lisp file. It cannot check all of the conventions, and not all the warnings it gives necessarily correspond to problems, but it is worth examining them all. Alternatively, use the command `M-x checkdoc-current-buffer RET` to check the conventions in the current buffer, or `checkdoc-file` when you want to check a file in batch mode, e.g., with a command run by `M-x compile RET` .