The following are one-page PDF ‘cheat sheets’ for Moodle 2.1 produced by myself whilst at the University of Nottingham, on using Moodle 2.1. They were sent to colleagues who emailed for support on particular Moodle topics, and were designed to be printable for user reference. They can be reused and modified for non-commercial purposes with attribution (Creative Commons BY-NC-SA). If you want to download the lot in one go, I suggest using the excellent DownThemAll! utility.