This book provides a by thorough course on basic & advanced principles of refrigeration and air conditioning in a easily understood manner. It covers themin all their branches including domestic, commercial, air conditioning, heat pumps, automotive, thermoelectric, solar energy, special devices and applications. The book also explains up to date methods at the timefor installing, maintaining, diagnosing repairing of them. The book is intended for use in classes in high school, technical schools, community colleges along with adult education classes or apprenticeship programs. The book will provide a foundation on which a solid, thorough knowledge of refrigeration and A. C. May be based. Beginners and apprentices along with skilled technicians will find this a valuable guide and reference. It is written using both US conventional units and SI Metric, organized into parts each covering a major knowledge area, beginning of each chapter has a list of objectives that will be learned in the chapter, each chapter ends with questions that will determine how well student is meeting the objectives, table of contents to help guide student, glossary of terms & extensive collection of charts and tecnical pieces, and a detailed index all to help student much as possible.. The book is 11.25" x 8.75" x 1.75 in hes in size with 1054 pgs and unpackaged weighs in at 5 lbs 7.2 ounces. Book is complete with no tirn, missing or damaged pgs and cover is in pretty good shape for its age. There is some writing and highlighting on the pages but nothing that should keep this from being a valuable learning or reference guide for either a student or skilled technician.