The audiobook market grows 20-30% annually, with 30% of Americans now listening regularly. Audiobook listeners spend $160+ annually and represent a distinct market segment. Production costs range from $0 (self-narration) to $10,000+ (professional). AI narration offers a low-cost middle path. Audible controls 65-70% of the market, but multi-platform distribution (Apple, Google Play, Libro.fm) maximizes reach.…