From premature infants to the elderly - the "Understanding & Caring" series written by nursing experts provides you with all the knowledge you need to care for people of all ages professionally. All content is presented in an easily understandable and practical manner, making it easier to learn complex topics. Numerous examples from nursing practice facilitate the transfer of theoretical content into everyday care. Summaries at the end of each chapter aid in learning and reviewing important information. References at the end of each chapter offer suggestions for further reading and ease the transition into academic work. Volume 2 focuses on perception and observation as the starting point for all nursing actions: the fundamentals of perception and observation, perceptual processes, and influencing factors.