This book will fascinate anyone with an interest in books, graphic design, marketing or how to develop a successful business. Essentially a journey through 70 years of Penguin Publishing history through the different cover designs that the company deployed, it also provides an insight into the changing demands of the publishing industry and how covers slowly changed to become marketing tools for the books they sold, rather than just an extension of the books themselves. The thinking behind the covers and the innovations are also laid bare as the author gets to the heart of how Penguin developed arguably the most recognisable brand in book publishing. The pictures of the covers are excellent, and really trace the changing face of penguin books, providing an excellent cross section of the company's design output since 1935. It also feels like a great book, with its thick card cover and thick glossy paper ensuring that it will endure persistent browsing, which is what my copy gets.