Howdy and Welkommen!
Well, for a beginner, there's an EXCELLENT book that will fit your needs, a must-have (IMHO) for the new armor modeler... I have it, and have had it for about twenty years, and I still refer to it at times...
The book is titled "Modeling Tanks and Military Vehicles", by Shepard Paine and is available through the Kalmbach Books website, or, if you're a "thrifty" chap like me, you might find a used copy for cheap at Amazon.com... The other book that's a must-have (again, IMHO) is Shep's other book, "How to Build Dioramas"... 1st Edition is probably cheaper, but the 2nd Edition includes a bit more inofrmation, but it's mostly advanced-level stuff. But don't let that stop you from getting it..
Here's a link to the Amazon site. Looks like there's a few copies left:
http://www.amazon.com/Modeling-Tanks-Military-Vehicles-Sheperd/dp/0890240450/ref=sr_1_1/102-9370310-9224930?ie=UTF8&s=books&qid=1185569247&sr=1-1#noop
And a link to the other book (My personal modeling Bible too)
http://www.amazon.com/How-Build-Dioramas-Sheperd-Paine/dp/0890241953/ref=sr_1_1/102-9370310-9224930?ie=UTF8&s=books&qid=1185569293&sr=1-1
Also, here's a link to some of Shep's work, which include his diorama tip sheets:
http://sheperdpaine.com/monogram/index.htm
http://sheperdpaine.com/monogram/Ostwind_sheet.pdf
Any questions, you can PM me (Start Conversation) and I'll be glad to answer. So will a lot of other guys around here...
Again, Welcome to the funny farm!