A pair of showbiz memoirs, a drawn-from-life novel involving Bob Dylan and an excellent new version of the first “Harry Potter” book are this month’s audiobooks.

“Future Boy: Back to the Future and My Journey Through the Space-Time Continuum”

By Michael J. Fox and Nelle Fortenberry, read by Fox. Macmillan Audio, 3 1/2 hours, $15.99. Available through all Rhode Island public libraries.

In this 40th-anniversary year for “Back to the Future,” Fox writes about how he juggled acting in the movie by night while filming during the day on the hit sitcom “Family Ties.” (There wasn’t a lot of sleep involved.)

Fox, now 64, weaves in some early biography, too, along with a little backstage drama. He had replaced Eric Stolz, who had already been filming for six weeks, and the other actors weren’t s

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