Giglio is the national-bestselling author of "Not Forsaken", "Goliath Must Fall, Indescribable: 100 Devotions about God & Science,The Air I Breathe: Worship as a Way of Life" and "I Am Not But I Know I Am: Welcome to the Story Of God." Giglio's latest release, "Not Forsaken", debuted at number 3 on the Publishers Weekly Trade Paper Frontlist, and ranked number 6 on the May 2019 Religion Nonfiction bestsellers list. His previous trade release, "Goliath Must Fall," made the Publishers Weekly bestseller list in May 2017 and was #31 in the list of the top 100 bestselling Christian books of 2017. His talks "Indescribable" and "How Great Is Our God" have been viewed by churches and individuals around the world. The "Laminin" clip from his message "How Great Is Our God" has been viewed over 3 million times on YouTube.