'Shū bā' (book café) is a hybrid space combining a bookstore and a café—customers can browse or buy books while enjoying coffee, tea, or light snacks. The character 书 means 'book', reflecting its literary focus, and 吧 is a phonetic loanword from English 'bar', used in Chinese to denote relaxed, Western-style social venues like coffee bars or music bars. Together, they signal an informal, cozy environment designed for reading, studying, or casual meetings.

Book cafés are especially popular among students, young professionals, and book lovers in urban China. They often host poetry readings, author talks, or writing workshops, blurring the line between commerce and culture. Unlike traditional libraries or bookstores, a shū bā emphasizes atmosphere and experience—soft lighting, comfortable seating, and curated book selections make it a third place beyond home and work.