

Spooner, who also acquired Karst’s subsequent companion Invisible String titles ( The Invisible Leash: A Story Celebrating Love After the Loss of a Pet The Invisible Web, a therapeutic activity book cowritten by Dana Wyss The Invisible String Workbook: Creative Activities to Comfort, Calm and Connect and You Are Never Alone: An Invisible String Lullaby-all illustrated by Lew-Vriethoff) noted that, although the original book demonstrated “strong sales momentum” from the start, the uncertainty, fear, and grief brought on by the pandemic “has supercharged the sales” of the franchise.

I felt a string pulling at me, and I knew we should take it on.”

We uncovered The Invisible String’s impressive sales history, and when I read the text, I was moved and charmed by its simplicity and resonance. As editorial director Andrea Spooner told PW in 2018, “We don’t usually acquire paperback rights without hardcover rights attached, but we did our due diligence. In October 2018, Little, Brown released a paperback edition of the book, featuring new art by Joanne Lew-Vriethoff. Based on the voluminous amount of laudatory mail the author received from grief and family counselors, military personnel, clergy, and medical workers, Karst realized that her book was helping children deal with not just separation anxiety, but divorce, death of a loved one, and other life-changing situations. Heralded by parents, educators, therapists, and social workers as a tool to help children cope with loneliness and separation, The Invisible String sold steadily in hardcover for DeVorss, hitting a worldwide sales tally of more than 400,000 copies by 2018.
