Update: Sorry, this promotion is over! Time to hit the books! Stock up your library and save 10% on all book orders for the next 24 hours. That’s 10% off single titles, and an *extra* 10% off packs and bulk book orders when you use code BTS10 at checkout.

But hurry—this flash sale only lasts one day, and it’s our last storewide book sale of the year!

Offer ends at 11:59am EDT, August 23.