The Left Behind Series First 1-12 is a collection of hardcover books written by Tim LaHaye and published by Tyndale House Publishers. The series is focused on the topic of Christianity and is categorized under the genre of Religious & Spiritual literature. The books in the series are written in English and aim to explore themes related to faith and the end times as experienced by a fictional group of characters who are "left behind" to face various trials and tribulations.