David Zailer is an author, speaker, and the founder of Operation Integrity. He is also on faculty with The Leadership Institute, championing faith-based recovery internationally. H...lihat lebih banyakDavid Zailer is an author, speaker, and the founder of Operation Integrity. He is also on faculty with The Leadership Institute, championing faith-based recovery internationally. His other books include Our Journey Home, Starting Point for Recovery, and the powerful memoir, Death of a Fisherman.lihat lebih sedikit