From the Becker website: https://becker.custhelp.com/
Can I sell my Becker Materials to someone else?
Question
May I sell my Becker materials to someone else when I am finished using them?
Answer
No. Because you licensed the use of these materials from Becker, and did not purchase them, you may not legally sell, give, or otherwise transfer them to someone else. Your License Agreement with Becker specifically prohibits you from selling or otherwise distributing those materials.
Can I purchase the Becker textbooks?
Question
I don't want to take a class. Can I just purchase your books (or Passmaster…or flashcards)?
Answer
No. Use of our books and materials are licensed only to persons registered in one of our CPA courses.
Purchasing Becker Materials on eBay
Question
How can I get an authorization number for materials that I received from an internet-auction site?
Answer
Becker does not support materials bought through unauthorized dealers. Unauthorized dealers of Becker materials are either (1) in violation of their license with Becker, or (2) selling counterfeit materials. We urge you not to purchase counterfeit items. Counterfeiting is illegal and purchasing counterfeit products supports this illegal activity.
BEC - 11/25/08-61, 8/31/09-76*, 2/24/12-76
AUD - 2/21/09-53, 8/31/10-60, 11/30/11-83
REG - 11/30/09-68, 5/31/12-79
FAR - 8/29/11-81
IL Ethics - 93
*Lost to 18-month Rule