Columbia Books & Information Services announced Aug. 29 that it has acquired Thompson Information Services, a publisher of subscription-based regulatory and compliance information primarily for human resource departments, from Thompson Media Group.

For more than 40 years Columbia Books has provided users with information on the associations, government relations, lobbying and public relations communities. The addition of the Thompson line of loose-leaf manuals and books, in print and digital library form, and compliance training continues Columbia Books five-year expansion in the compliance information and training services arena.