Initially a textbook publisher, the company added journal publishing in the 1970s, and encyclopedia publishing in the early 1980s. Serving
mathematics, it published a series of
Lecture Notes in Pure and Applied Mathematics. The company was purchased by Taylor and Francis in 2003. At that time, it published 78 journals and 300 new books annually. The imprint closed in 2005. As of 2008, they have a total of 26 encyclopedias available. These encyclopedias deal with scientific issues such as
agricultural engineering,
chemistry,
agronomy, and
library science. == References ==