HIV, a retrovirus, is the causative organism of Acquired Immune Deficiency Syndrome (AIDS) that develops during later stages of HIV infection. HIV destroys immune cells and disables the immune system against other diseases, infections, and cancers. Study of structure and pathogenesis of HIV, clinical manifestations, diagnosis and treatment arouses interest when teaching is assisted by a comprehensive reference source with graphical representations. The FOCUS Animated Pocket Dictionary of HIV,