Assuming Lisp is correctly indented, it's quite easy to read. You can just ignore the parentheses for the most part, and concentrate on the layout and the bui

Assuming Lisp is correctly indented, it's quite easy to read. You can just ignore the parentheses for the most part, and concentrate on the layout and the built in macros - defun, let, do/loop, cond/if/when/unless/case, lambda, ... If it's written in a functional style it becomes even easier: you don't have to hold any state in your head.