Existing books on measures and rating scales, such as the two books above, describe different scales developed by different authors at different periods. Each scale has its own rating guidelines and training requirements, which must be followed by clinicians in order to use the scales. This demands a considerable amount of time for clinicians and can be a barrier to using the scales in practice. Even within the same psychopathology domain, many published measurement scales exist. For instance, the book published by Waters and Stephane includes 120 scales for psychosis. Among the 120 scales for psychosis, which scale(s) should the clinician choose? Our proposed manual will remove these barriers by creating simple and universal principles which allow readers to use the 33 reliable and validated SCIP scales with most adult psychiatric disorders. There will be 15 videotaped interviews available online for readers who buy the book. Readers are expected to watch the interviews in conjunction with reading the manual.