I’d never heard of the book Go Ask Alice, but the mystery surrounding the author made this piece an interesting read:

Despite the popularity of Go Ask Alice, the mystery of the diarist’s identity has never been truly solved, and none of her relatives have ever come forward to claim a share of the royalties. Yet the book was largely treated as authentic by reviewers in the 1970s, and touted as such for the television adaptation. Only Publisher’s Weekly threw shade, remarking that it “seems awfully well written,” to be real.