Tales from the Pizzaplex (or T.F.T.P) is a book series, that is canon to FNaF. But even then, it has some bullshit stories that fit more for Fazbear Frights' fairytales than canon FNaF lore. (My opinion)

They can be good, but it just doesn't fit with what i associate FNaF with (at least with FNaF 1-UCN). Especially: Frailty, B-7 and Animatronic Apocalypse. There is also this "FNaF 4 explanation" story, but i don't remember it's name. Anyway, so this is why this art was made. Cause at this point time machines have a chance to be in FNaF and be canon fr. (also why plastic chicken (Toy Chica) has a t-shirt and hat? Because why not? It's a test comic anyway)