This book is a great introduction to the field of extrusion for those interested in the subject. Written by Paul N. Richardson and published by the Society of Plastics Engineers, it is a valuable resource for anyone looking to learn more about this specific area. The book is in English and has 96 pages, It is a textbook in the format of a book, with a unit type of unit and a language of English. The book is not personalized and was originally published in 1974, but is timeless