Prima music is advertising that they will be having all kinds of sales this summer! These sales look as though they will be lasting about 2 weeks. Currently, these items are on sale through June 15th:
Developing Artist Series 40-50% off
Piano Adventures (Adult, My First PA, Accelerated PA, PA) 25% off
Alfred Famous and Fun Series 25% off
Alfred Sacred Performer Series 25% off (this page instructs you to log in for discount.  This page indicates that these are on sale. They are also offering free shipping.
My Returning to the Piano book is now available from Prima Music!  The popular Easy Hymn Solos Series and the new NFMC approved Twister piece is also available.
Speaking of NFMC pieces, in case you missed it, there is now a website that will assist you in viewing NFMC pieces so that you can evaluate their difficuly online. See Online Samples of NFMC Pieces for more information.
