De Mente wrote the first ever books on the Japanese way of doing business (Japanese Etiquette and Ethics in Business in 1959 and How to Do Business in Japan in 1962), and was the first to introduce the now commonly used Japanese terms wa, nemawashi, kaizen, tatemae-honne, shibui, sabi and wabi to the outside business world!

His 70-plus other books run the gamut from language learning to the night-time "pink" trades in Japan, the role of bars, cabarets and geisha houses in business, the sensual nature of Oriental cultures, male-female relations, and understanding and coping with the Chinese, Japanese, Korean and Mexican mindset in business and social situations.

All of De Mente's  titles appearing in AuthorsDen are published by Phoenix Books/Publishers, and are available in both printed and digital editions. His 50-plus other titles are published by McGraw-Hill and the Periplus-Tuttle-Berkeley Group. Several of his titles have been published by foreign publishers in their respective languages, including: Chinese, Croatian, French, German, Hebrew, Japanese, Italian, Polish, Portuguese, Russian, and Spanish.

His major books on the business practices and cultures of China, Japan, Korea and Mexico are widely used by consultants and universities. Most of these are also available in digital as well as printed editions.