Many experts on unreleased Beatles recordings are unconvinced. Both Mark Lewisohn ("The Complete Beatles Chronicle") and Doug Sulpy ("The 910's Guide to The Beatles' Outtakes") completely ignore the song in their books. Richie Unterberger ("The Unreleased Beatles: Music & Film") allows for a slight possibility of a Beatles origin, stating: "Unless some surprising proof is unearthed, it must be assumed that 'Peace of Mind' is not the Beatles—though not beyond the shadow of a doubt." John Winn, author of several books documenting Beatles recordings, was asked his opinion about the song and was quoted as replying: "The only surprising thing about this is that so many people still believe it might have a Beatles connection, despite the fact that no evidence of such a title has turned up in the EMI tape log, the Lennon home archive, the 80 hours of 'Get Back' sessions, copyright records, any written documentation, or any interview (Paul, Ringo, and George Martin have all been asked about 'Peace Of Mind' and/or 'The Candle Burns' and it didn't ring a bell with any of them). I would bet my entire collection that it's not a Beatle recording."