User blog comment:Ironreaper/Did Shepard leave Ceberus./@comment-204.210.207.90-20100915194803/@comment-217683-20100919064649

Yeah, they're canon, as far as I know. After all, this series is being written by Mac Walters (aka the lead writer for ME2). They keep the writing pretty much exclusively in-house. The novels have all been written by Drew Karpyshyn (lead writer for the first game, and one of the writers of the second), and they haven't said anything about the books or comics being non-canon.