http://ebookstore.sony.com/weekly-deals/
U.S.: Use code
4THOFJULY30
Canada:
CANADADAY30
Terms and conditions: Code good for 30% discount off one (1) eBook download of an eligible title from the Reader™ Store (“Reader Store”) from Saturday June 30, 2012 through Wednesday 07/04/12. Code not valid for eBooks from certain publishers. Click here for more information on publisher restrictions. Must redeem code into your registered Reader Store account and complete all downloads by 11:59:59 pm PST on 07/04/2012. Code is non–transferable and not valid on prior purchases. Offer valid for US residents, 13 yrs. or older. Certain eBooks may not be available for download based on place of residence. Limit one (1) Code per account. Free account registration at Reader Store required. Full terms and requirements available at
http://readerstore.sony.com/cardterms.html.