Buy.com has a new set of hot selling items in book category for the month of January. Pre-order The Purpose Driven Life: What on Earth am I Here For? in paperback by Rick Warren coming out on January 30, 2011. This item is offered at a price of $5.99 from the list price of $7.99. That’s an instant savings of $2.00. Plus take advantage of a shipping for just $3.60.