The Design Secrets series brings you inside the intriguing process of design. Unlike other design books that show only the final product, this series profiles design projects in detail, from concept to completion, and all the stages in between, seasoned with the designers' insights and inspirations. Each volume presents 50 successful projects, created by leaders in the design field.
This is probably another one of those books that is on the 'nice to have' reading list for product/industrial design students.
Although the products in it are already quite dated looking, it's a nice insight into the birth of products, from their initial conception through to design for manufacture.