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Contests for Adults For Younger Readers

The Astronaut's Son Contest New contest
Win Tom Seigel's intriguing novel (ends Sep 30, US, 18+).
Bestsellersworld Giveaway New contest
Three Little Lies by Laura Marshall (ends Sep 23, US, 16+).
Bestsellersworld Giveaway New contest
Charles Todd's A Forgotten Place (ends Sep 23, US, 16+).
Bookbitch Contests New contest
Chances to win 10 autographed thrillers (ends Sep 30, 18+).
Bookreporter Contest New contest
Win Amy Mason Doan's The Summer List (ends Aug 14).
BookReporter Word of Mouth Contest New contest
Desolation Mountain, Trust Me (ends Sep 7).
Criminal Element Sweepstakes
Win crime fiction (ongoing).
Free Book Friday
Chance to win every Friday (weekly, US & CA).
Fresh Fiction Contests
Win a variety of books (ongoing).
Goodreads Giveaways
Win a variety of prerelease books.
History in Five Sweepstakes
Win a hardcover or signed edition book (monthly, 18+).
James Patterson Contests New contest
Chance to win Juror #3 (ends Sep 6, US & CA, not Quebec, 13+). Contest
Win books and audiobooks (ongoing).
Penguin UK Competitions
Win books, trips, much more (ongoing, UK, 13+).
Read It Forward Giveaway
Weekly chances to win books (ongoing, US, 18+).
Reader Views Contests
Win a variety of books (ongoing, US & CA, 18+).
Sounding Off on Audio Contest New contest
Lake Success, Vox audiobooks (ends Oct 1).
Susan Elizabeth Phillips Contests New contest
Win signed hardcover Heroes are my Weakness (ends Sep 30).
Tor Cory Doctorow Sweepstakes
Chance to win 5 signed books (US & CA).
Writerspace Contests
Win ebook readers, books, gift certificates, much more (ongoing).

For Younger Readers Contests for Adults
Epic Reads Contests
Win ARCs of various YA novels (ongoing).