Bargains for Members at AAPT

The American Association of Physics Teachers (AAPT) is having a great booksale for their members. Just choose 5 books for the price of USD 30 (excluding statement), maybe that is sufficient motivation to entice me to renew my membership....I stopped renewing when my school subscribed to "The Physics Teacher".

If you are interested, you may go to http://www.aapt.org for more details