A guidebook, although not a medical term itself, can be defined in a medical context as a publication containing information and advice to assist patients, caregivers, or healthcare professionals in understanding and managing specific health conditions, treatments, or self-care practices.
Books containing photographs, prints, drawings, portraits, plates, diagrams, facsimiles, maps, tables, or other representations or systematic arrangement of data designed to elucidate or decorate its contents. (From The ALA Glossary of Library and Information Science, 1983, p114)