This book is a short collection of all the necessary theoretical foundations that a novice pediatrician will need. Basic knowledge that medical students will need to prepare for exams, specialists in order to refresh information and refer to the publication as a reference book, as well as residents, nurses and other health workers to deepen their expertise. The 8th edition contains clearly structured chapters, supplemented by a list of recommended literature and examples from medical practice with a detailed analysis. Also, the publication is supplemented with tables, diagrams and photographs that help in studying the basics of pediatrics.