It's a great chance to grab some cheap presents for others and/or get some books for yourself, because who doesn't need more books! :D
It starts in less than 24 hours and runs from 8pm - 9pm AEDT, 4am - 5am EST, & 9am - 10am GMT! They only have a limited number of copies for the bargain books so you have to be quick! It's totally worth it though, the last couple of times they've done these sales I have picked up some fabulous new books!
If you don't have a clue what I'm on about, check out the FAQ's here.
And don't forget to tweet: #50BookSale to see, or show, the awesome offers!