A Guided Tour through the Fundamentals of Git
I highly recommend biting the bullet and reading through Pro Git by Scott Chacon (from Github).<p><a href="http://progit.org/book/" rel="nofollow">http://progit.org/book/</a><p>It's about 200 pages but it really, really helped me internalize how git works. Each git feature/command is explained with a use case and a clear illustration of what's going on.<p>The online version is free and it's available as a PDF, epub, and mobi.