Four Hundred Million Customers (1937) is a collection of humorous essays and piquant anecdotes underpinned by well-informed insight and highlighted by witty drawings by G. Sapojnikoff. Like a bowl of salted peanuts, these vignettes make you want "more." The book was welcomed on its publication as the most entertaining and instructive introduction to the rapidly modernizing people of the new China and their resilient customs. While it has been taught in recent years at the Harvard Business School, the book β or at least its title β has been cited much more than read, usually to illustrate American illusions about the China market. Yet the book has lost none of its still perceptive insights into China, which is now more than triple "four hundred million."