SAN FRANCISCO (KGO) -- If you have a teenager or millennial in the house, this interview is for them.
Stephen Chbosky, the best-selling author of "The Perks of Being a Wallflower," who also directed the film version starring Emma Watson spoke to ABC7's Kristen Sze about his new book.
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It's called "Imaginary Friend."
Watch the video above to see the entire interview.