The Manual of Psychedelic Support is a new harm reduction resource providing a comprehensive overview of how people can provide compassionate care to people undergoing difficult psychedelic experiences during large-scale music festivals and events. This second edition of MOPS features an interactive in-the-field workbook with ruled scholar's margins for note-taking. The book is packed with full-color photographs depicting alternative festival culture and its psychoactive drugs of choice. It also showcases dozens of beautiful visionary artworks from fifteen contemporary psychedelic artists. New to this edition is a 46-page Guide to Drug Effects and Interactions which summarizes notable contraindications between different classes of psychoactive drugs. A quick-reference Index to those substances commonly encountered at music festivals and similar events is provided.