A collection of articles that have been published in the "IBM Personal System Developer", the journal through which OS/2 developers share programming codes, tips and techniques. Specific topics include OS/2 file systems, Presentation Manager program development, state-of-the-art program design under IBM"s Common User Access (CUA) guidelines, OS/2 developer tools and services, OS/2 EE Communications Manager, OS/2 EE Database Manager, OS/2 for 32-bit machines and OS/2 Networking APIs.