Artur Malabarba has some good advice on sharp quoting Elisp functions. It’s common for Elisp programmers to use a single quote (i.e the quote form) to mark functions. Malabarba explains why it’s better practice to use #' (i.e. the function form) to indicate a function.
This is a great post (as usual for Malabarba) and all Elisp programmers should read it.