RISC OS 3 Programmer's Reference Manual

THe RISC OS 3 Programmer's Reference Manual provides a full reference to the RISC OS API and detailed memory maps for the hardware that belies it. Spanning four volumes and a separate index, the observant amongst you may note there are five books in this photo. The fifth book although not part of the Programmer's Reference Manual constitutes an important part of developing applications for the RISC OS desktop environment which is the RISC OS 3 Style Guide. As such I keep it safe with the Programmer's Reference Manual.