Participants can enter daily until EST. Valid name, email and mailing address required to be eligible. No purchase necessary. This contest is offered only in the United States to legal residents of the 50 United States (and the District of Columbia) excluding Puerto Rico. Prize winners are selected weekly and will be notified by email. Participants are eligible to win one weekly prize per household. Entries rollover week to week. Weekly prize winners are still eligible to win the $10,000 grand prize. $10,000 grand prize winner will be notified by email. Each potential winner’s first name and/or last initial and/or state of residence may be posted on www.textbookrush.com, the TextbookRush.com Facebook page, Twitter page or Instagram account. $10,000 grand prize winner will be required to fill out appropriate tax paperwork that TextbookRush provides. Please contact us at promos@textbookrush.com if you have any questions.