Pediatric hemato-oncology branches is an upcoming branch in the field of pediatrics, with lots of prospects in the near future. Multiple choice questions in hematology and oncology are compulsory in nearly all under and postgraduate board exams similar to other important subjects in pediatrics like cardiology, gastroenterology, neurology, etc. when it comes to teaching during graduation and post-graduation studies. This book represents a central theme useful for students, residents, fellows and pediatric hematologists and oncologists as essential knowledge required for examinations. Since it is the first edition, I try to cover all common benign and malignant hematology diseases and solid tumors. There are no specific questions and answers book in pediatric hemato-oncology branch and the students usually searching various pediatrics books to get questions related to these subjects. The aim of this book is to present the hematology and oncology questions and answers with it is explanations in way enhancing the student's skills and information's and help them study, accumulate knowledge points, and make them stay up to date.