Carolyn Mackler is the author of the popular teen novels, The Earth, My Butt, and Other Big Round Things (A Michael L. Printz Honor Book), Infinite in Between, Tangled, Guyaholic, Vegan Virgin Valentine, and Love and Other Four-Letter Words. Carolyn's novel, The Future of Us, co-written with bestselling author Jay Asher, received starred reviews and appeared on several bestseller lists. Carolyn has also written Best Friend Next Door, a novel for younger readers. Carolyn's novels have been published in more than twenty countries, including the United Kingdom, Australia, Germany, France, Italy, Korea, the Netherlands, Denmark, Israel, and Indonesia.

Carolyn lives in New York City with her husband and two sons. Her new novel for teens, The Universe is Expanding and So Am I, will be published in May 2018. This is the long-awaited sequel to the Printz-honor winning novel, The Earth, My Butt, and Other Big Round Things.