The textbook "Intestinal Preparation for Colonoscopy" offers a comprehensive analysis of the importance of intestinal preparation for performing a colonoscopy. It highlights the crucial role that high-quality preparation plays in the effectiveness and efficiency of the endoscopic procedure. By examining various preparations and their impact on the adenoma detection rate as well as the follow-up times, the relevance of the correct choice and application of preparations is emphasized. The book is based on a retrospective study that compares the effectiveness, acceptance, compliance, tolerability, and safety of different intestinal preparations. The results provide valuable insights for professionals in the field of gastroenterology and contribute to the optimization of colonoscopic procedures.