Play Game takes place on Jan. 21-24. Stuff Your Kindle Days often take place over 24 hours, this event runs for four days.

First Reads gets you early access to new books across popular genres. Prime members get free Kindle e-books every month from a list hand-picked by editors.

The winter edition of the Cozy Mystery Book Blast takes place on Jan. 22. Unlike the Play Game giveaway running from Jan.

"Stuff Your Kindle Day" happens several times a year when Amazon lists thousands of Kindle books for free.