Are the FNAF Books Actually Canon?

Overview

FNAF has become a multimedia franchise, from games, movies, and books it really spans all reaches of entertainment. With that comes one specific question everyone has been asking for years... are the FNAF books actually canon to the games? Does what happens in the book universe happen in the game universe? With the release of the Help Wanted 2 VR update there are some major signs that things may be more connected than we thought...