So I found a great study guide for the different levels of licenses.
Technician-Class License Study Guide
TECH STUDY GUIDE PDF FILE
AMAZON KINDLE VERSION
BARNES AND NOBLE VERSION
Technician-Class License Study Guide (for tests after July 1, 2014)
Free PDF File
AMAZON KINDLE VERSION
BARNES & NOBLE VERSION
General-Class License Study Guide
free version (PDF file)
Amazon Kindle version
Barnes&Noble Nook version
Extra Class License Study Guide
PDF file
Amazon Kindle version
Barnes&Noble Nook (ePub) version
Bookmarks