Board Thread:Naruto News/@comment-1926479-20141205153156/@comment-945885-20141205231322

Seelentau wrote: They're not canon. They're written by the dude who wrote the Jinraiden book. Doesn't necessarily mean they're not canon. I think we'll have to wait and see where they fall in the series timeline and what content they feature. They're supposed depict events from "beyond the original story," and they're described as "secret records" which, to my mind at least, implies that their purpose is to convey new information.

At any rate, they should be at least as "canon" as the anime filler, if not moreso, considering that Kishimoto illustrated them and thus had some degree of interaction with the media.