This textbook on HVACR 401 is a valuable resource for anyone studying or working in the field of electrical engineering. It covers a wide range of topics related to trade and is published by Cengage Learning. The book is in the format of a traditional print book and is part of the HCAVR 301 series. The book is classified under Textbooks, Education & Reference and falls under the category of Books & Magazines. Whether you are a student or a professional, this book is an essential tool to help you gain a deeper understanding of electrical engineering.