Book excerpt: This is a collection of cutting-edge mycoplasma methods for the detection, isolation, identification, characterization, and genetic manipulation of the pathogenic mycoplasmas. These step-by-step methods are crafted for successful reproducibility and include biochemical, genetic, and molecular techniques essential to understanding pathogenecity and adhesion to host cells. They also cover the detection of mycoplasmas in cell cultures, an important tool not only in viral diagnosis and research, but also in the production of vaccines and various biological products.