Anesthesia is a specialty that provides pain-free environment in every aspect of human illness. The book Essentials of Anesthesia and Critical Care is written with the goal of providing a concise description of the anesthesia and critical care that is must know by MBBs students. The text is formatted in a student-friendly manner, which will not only help the undergraduate students during their theory exams but also help in solving Postgraduate Medical Entrance Examination (PGMEE) question. Tables, line diagrams and flow charts are added in each and every chapter for quick and easy grasp of the respective topic. Various important aspects related to the topics are incorporated as “Key Points” in separate boxes. Each chapter is followed by review questions that include previous years’ PGMEE and National Eligibility-cum-Entrance Examination (NEET)-based sample questions. Language is kept very easy; and mnemonics is added wherever necessary to help students retain information for long time. It is a complete resource of anesthesia for undergraduate students.