This item is well-used with a lot of writing, as shown in the photos. The answers are written in it, so it's recommended for those who want to skip class or homework. A textbook for learning specialized English in the field of engineering. Includes an audio CD, perfect for improving listening skills. - Title: Cambridge English for Engineering - Author: Mark Ibbotson - Series Editor: Jeremy Day - Included: Audio CD - ISBN: 978-0-521-17158-8 Thank you for looking.