Yesterday Is History by Kosoko Jackson In Yesterday Is History ($16, originally $18), Andre Cobb wakes up from a liver transplant with the discovery that he's now able to time travel as a side effect. The family of his late donor designates their youngest son to help him learn to use his gift, and he spends his time travelling between present day and the past. He's torn between two boys he's interested in — one in each time period — and must decide where he wants to stay before the consequences of so much time travel catch up with him. Image Source: amazon.com Yesterday Is History $16 from amazon.com Buy Now