After a much longer than expected hiatus, NBC’s Community is back for its final semester — well, assuming everyone gets all the credits they need to graduate on schedule, that is. And after three years of extended paintball games, pillow and blanket forts, an expulsion and upcoming forgery situation that overbooks the only history class being offered on campus, graduating from Greendale might be a tougher feat than the Study Group expected.

But if you want to cram on Community and Greendale in general before it returns, then Celebuzzhas the perfect cheat sheet for you!

To celebrate the show’s fourth season premiere, NBC and Sony Pictures Television have put together a “Study Guide to All Things Greendale.”

Starting with “Introduction to Film” aka Hulu, you can bone up on your knowledge of Jeff (Joel McHale), Abed (Danny Pudi), Troy (Donald Glover), Shirley (Yvette Nicole Brown), Annie (Alison Brie), Britta (Gillian Jacobs), Pierce (Chevy Chase), and the non-group members by watching old episodes and reliving your favorite meta moments and pop culture references.

(Of course, Seasons 1-3 are available on DVD for the same purpose)

Heading over the NBC’s official Community Tumblr will give you access to all kinds of memes and special clips that you can then share on with your friends on Facebook or debate the importance of on Reddit. You can plan for a premiere viewing party by picking up show merchandise at the NBC Store and downloading the official soundtrack on iTunes.

Then of course make sure to tune into the fourth season premiere, “History 101,” and live-Tweet with using special hashtags with your friends and show personnel like series star Yvette Nicole Brown.

The only thing this infographic is missing is a mention of downloading the Journey to the Center of Hawkthorne game and popping by CommuniCon in Los Angeles the weekend following the premiere. Now, thoseare truly for the die hard Communies!

Community returns Thursday at 8 PM on NBC.

Take a look at the infographic below.

Why are you most excited to see the Greendale gang return? Let us know in the comments below!

— Danielle Turchiano