Book excerpt: Corticosteroids represent the most important and frequently used class of anti-inflammatory and immunosuppressant agents in the management of many rheumatological conditions. Included in this issue will be articles on the following topics: Glucocorticoid use in intra-articular and soft tissue injections, corticosteroids and osteoporosis, corticosteroids in lupus, ANCA associated vasculitis, and many more!