The MRCPsych CASC examination tests candidates' ability to solve common problems faced by psychiatric trainees at ST4 level. The exam has a high failure rate and covers a wide syllabus, making preparation daunting and topics difficult to prioritise. Fast Revision for the MRCPsych CASC Exam condenses preparation into two dozen easy-to-read generic scenarios likely to appear in the exam. These are divided by subspecialty, allowing candidates to see and grasp what they need to know quickly. It also provides model answers at the level needed for a safe pass, along with discussion points to provide a sound, accessible basis for further learning. This will be essential reading for MRCPsych CASC candidates, but also for overseas psychiatrists trying to develop a rapid understanding of the British system.