Book excerpt: Now completely updated! The best-selling, most comprehensive guide to lupus, its complications, and management. Lupus is an autoimmune disease that can attack any body organ. It is three times more common in the United States today than it was in the 1980s, so there is an increased need for accurate, practical information on this potentially devastating disease. Lupus expert and clinician Donald E. Thomas, Jr., MD, provides all the helpful information patients need so they can understand and treat this disease. Highlighting amazing advancements in the diagnosis and treatment of lupus, this edition includes new and expanded information on: • The latest FDA-approved medications • How lupus affects different body parts • Advanced labs that improve lupus diagnosis and treatment • The role of the microbiome and anti-inflammatory diets • Updated recommendations for those who are pregnant or breastfeeding • Childhood-onset lupus • The interaction between COVID-19 and lupus • Non-drug treatments, complementary medicine, and medical cannabis The gold standard since it was first published and carefully reviewed by experts in the field, the latest edition of The Lupus Encyclopedia is essential for patients, health care providers, and families. Bonus content on insurance issues and information about working with lupus and disability is also available online. Endorsed by The Lupus Foundation of America Contributors: Jemima Albayda, MD; Divya Angra, MD; Alan N. Baer, MD; Sasha Bernatsky, MD, PhD; George Bertsias, MD, PhD; Ashira D. Blazer, MD; Ian Bruce, MD; Jill Buyon, MD; Yashaar Chaichian, MD; Maria Chou, MD; Sharon Christie, Esq; Angelique N. Collamer, MD; Ashté Collins, MD; Caitlin O. Cruz, MD; Mark M. Cruz, MD; Dana DiRenzo, MD; Jess D. Edison, MD; Titilola Falasinnu, PhD; Andrea Fava, MD; Cheri Frey, MD; Neda F. Gould, PhD; Nishant Gupta, MD; Sarthak Gupta, MD; Sarfaraz Hasni, MD; David Hunt, MD; Mariana J. Kaplan, MD; Alfred Kim, MD; Deborah Lyu Kim, DO; Rukmini Konatalapalli, MD; Fotios Koumpouras, MD; Vasileios C. Kyttaris, MD; Jerik Leung, MPH; Hector A. Medina, MD; Timothy Niewold, MD; Julie Nusbaum, MD; Ginette Okoye, MD; Sarah L. Patterson, MD; Ziv Paz, MD; Darryn Potosky, MD; Rachel C. Robbins, MD; Neha S. Shah, MD; Matthew A. Sherman, MD; Yevgeniy Sheyn, MD; Julia F. Simard, ScD; Jonathan Solomon, MD; Rodger Stitt, MD; George Stojan, MD; Sangeeta Sule, MD; Barbara Taylor, CPPM, CRHC; George Tsokos, MD; Ian Ward, MD; Emma Weeding, MD; Arthur Weinstein, MD; Sean A. Whelton, MD