9Supporting Sucking Skills in Breastfeeding Infants, Fourth Edition is an essential resource for healthcare professionals working with new breastfeeding families and infants. Using a multidisciplinary approach, it incorporates the latest research on infant sucking and clinical strategies to assist infants with breastfeeding. With an emphasis on skills, it focuses on normal sucking function in addition to difficulties based in anatomical, cardiorespiratory, neurological, or prematurity issues. The Fourth Edition has been extensively updated with new photos throughout and additional information on breastfeeding modifications for infants with structural issues, including micrognathia, orofacial clefts, and torticollis. The contributing authors also reflect on the latest breastfeeding research, including the mechanics of sucking, the normal anatomy of the floor of the mouth, the role of tongue tie in feeding difficulty, as well as strategies to support infants with neurological conditions.