I myself still a beginner.

Here are these links (read in order) is sufficient for the initial study of Git:

  1. http://progit.org/book/
  2. http://osteele.com/archives/2008/05/my-git-workflow — good picture
  3. http://book.git-scm.com
  4. man git
  5. http://git.or.cz/gitwiki/FrontPage