The “Mastering Essential Math Skills Ser.: Problem Solving” by Richard W. Fisher is a trade paperback textbook published by Math Essentials in 2016. This book, part of the Mastering Essential Math Skills Series, focuses on problem-solving skills in the subject of mathematics. With a total of 80 pages, it is designed for students and educators looking to enhance their understanding and teaching methods in the field of education. The author provides valuable insights and strategies to improve mathematical problem-solving abilities in a clear and engaging manner.