BookSense.com Co-op Reimbursement Program To participate in the BookSense.com Co-op Reimbursement Program, stores must be ABA, Book Sense, and BookSense.com members in good standing. Click here for a downloadable PDF form to sign-up. Fill out this form and return it to Len Vlahos via fax to (914) 591-2720) or via mail to 200 White Plains Rd., Tarrytown, NY, 10591. If you have questions about the program, contact BookSense.com Customer Service at [email protected] or (800) 637-0037, ext. 6654 or 6653.