Survival Chinese: street-smart essentials in 30 mini-lessons—order food, hail rides, read metro signs, bargain at markets, handle emergencies; pinyin locked, characters unlocked, tongue tuned through role-play drills. Business Chinese: 25 case-based modules covering trade fair talk, contract clauses, email etiquette, price negotiation, and toast-making; formal registers, sector phrases, and cultural cues polished via mock meetings and elevator pitches.