The Book of Changes is the twenty-third episode of the fourth season, and the eighty-fifth overall episode, of the CBS series, Ghost Whisperer, originally premiering on May 15, 2009 as the season four finale. The episode was written and directed by John Gray, and recieved a total of 9.15 million viewers.
Jim and Melinda's wedding is overtaken by an ambitious wedding planner while Melinda deals with dreams that seem to threaten her child. Elsewhere, Eli's ex, Zoe, is caught up in a book sale with tragic consequences. Melinda hopes she can protect her baby after a ghost visits her.