One Hundred Years of Solitude by Gabriel García Márquez (paperback)

One True Thing by Anna Quindlen (paperback)

One under by Graham Hurley (paperback)

One with you by Sylvia Day (paperback)

One?! by Aaron Blabey (paperback)

Only Love Can Break Your Heart by Katherine Webber (hardcover)

Only Revolutions by Mark Z. Danielewski (paperback)

Only Time Will Tell by Jeffrey Archer (hardcover)

OPENING BELLE: A NOVEL by Maureen Sherry (hardcover)

Operation Trinity by Clifford Riley (hardcover)

Opposites by Sandra Boynton (hardcover)

Oprah by Kitty Kelley (hardcover)

Ordinary Grace by William Kent Krueger (paperback)

Orhan's inheritance by Aline Ohanesian (hardcover)

Origin by Dan Brown (paperback)

Orphan Train by Christina Baker Kline (paperback)

Orphan Train Girl by Christina Baker Kline (paperback)

Oscar & Lucinda by Peter Carey (paperback)

Out of my mind by Sharon M. Draper (hardcover)

Out of my mind by Sharon M. Draper (paperback)

Out of Our Minds by Ken Robinson (hardcover)

Out of the Dust by Karen Hesse (hardcover)

Out of the Easy by Ruta Sepetys, Álvaro Abella Villar (paperback)