LichensBook is a reference for 25 brewing methods in the James Hoffmann / Scott Rao tradition. Every method has the exact recipe: coffee grams, water grams, ratio, grind, water temp, bloom, step-by-step procedure, the theory behind why it works, food pairing, history, and common mistakes. WHAT IS INSIDE - 25 brewing methods across pour over, immersion, espresso, stovetop, cold brew, and ceremony - Real recipes — not "to taste" - Why-it-works theory for every method - AI barista coach for troubleshooting (espresso shot times, grind adjustments, ratio tweaks) - On-device SwiftData brew log - 3 coach asks per day free; Pro is unlimited PRIVACY - Every brew log entry stays on your iPhone - No login, no email, no analytics SDKs - Coach asks send only the method name and your question PRO ($4.99/month, $19.99/year, $34.99 lifetime) - Unlimited AI barista coach - Unlimited brew log Built in Australia.