The Unwind Dystology is a series of science fiction novels by young adult literature author Neal Shusterman. It consists of Unwind, UnWholly, a companion book UnStrung, UnSouled, and UnDivided. A feature film adaptation of the first book is currently being planned.
      The series centers on a group of people set for unwinding during a time in the future when children between the ages of thirteen and eighteen can be "unwound" by their parents. In this future, it is widely believed that, since the child's organs are transplanted into different donors, life for the unwinds do not technically end.
Unwind Wikia
Unwind (Unwind, #1)
UnStrung (Unwind, #1.5)
UnWholly (Unwind, #2)
UnSouled (Unwind, #3)
Undivided (Unwind, #4) Expected publication: October 14th 2014