Book excerpt: Starting from the observation of the ubiquity of fan podcasts engaging in media commentary, this book explores three fan podcast genres in which commentary manifests as a structuring form: rewatch and reread podcasts, recap podcasts, and review podcasts. The author conducts a formalist genre analysis of these podcasts, close reading nine case studies to describe how the three genres function and how different fan labour manifests in podcasting. Each case study teases out the themes, style, and formal constellations of the three podcast genres, shows how different fans activate the affordances of podcasting and commentary, and reveals the distinct generic functions of the three podcast genres. This book will be of significant interest to scholars and students in podcast studies, fan studies, cultural studies and literary studies who are interested in fan podcasts, podcast genre analysis, and ways of close reading podcasts as texts.