This is the Chemical Engineers' Handbook, Textbook Edition, by John H. Perry. It is a comprehensive guide that covers a wide range of topics in the field of chemical engineering. The book is an excellent resource for students and professionals alike who are interested in learning about the principles, practices, and tools of chemical engineering.

The book is in fair condition and has features like illustrations and hardcover, making it a valuable addition to any collection. It was published in 1950, which makes it a piece of academic history that reflects the scientific and technological advancements of that time. The book is written in English and is intended for an adult audience. It is an excellent reference for anyone interested in the topics of engineering, science, and technology.