PWS has been absorbed into Thomson.

Founded in 1965, PWS Publishing Company's mission is to fill a need for better college- and graduate-level educational materials in computer science, engineering, and mathematics. Our goal is to be the publisher of choice and record for educational materials in computer science and the related disciplines we serve throughout the world. PWS has come a long way toward this goal in recent years; we've launched several cutting-edge series and projects, and have undertaken a mission to seek out and cultivate superior instructional materials, some of which are redefining the future of computer science education. PWS Publishing is a division of International Thomson Publishing, a global publishing organization with a dynamic presence in academic, university, trade, library, and professional markets. International Thomson markets PWS texts worldwide, through offices in Toronto, Mexico City, Tokyo, Hong Kong, Singapore, Melbourne, Bonn, Paris, and London.