The Rheumatism Guide for the diagnosis and treatment of the diseases rheumatoid arthritis, psoriatic arthropathy and spondyloarthritis is based on the short version of the “Guidelines for Practice – RA, PSA and SPA” published for the first time in 2020 by the Austrian Society for Rheumatology and Rehabilitation (ÖGR). The APP is updated at regular intervals. The clinical pictures are described, therapy guidelines are presented according to the EULAR guidelines and practical links to documentati