This book is a sequel to the four "Non-designer's" (ND) books written by Robin Williams - and you'd better read them before reading this book because there's a test as the first chapter! It's a very different book to the ND books. It's far less prescriptive, discussing alternative ways of design, rather than advising on the best way. Consequently it's a book to read and then use to dip into for ideas, rather than a "read and learn" book. It was therefore a surprise to a non-designer like me who was hoping for a little more definite guidance but, let's face it, once you've learnt the basics, design is all about experimentation. In this respect, the book is good. It has many examples, printed in full colour on good paper, with comments on each. It is well structured and laid out and is therefore easy to read and use for ideas. So, if you have read the ND series and feel you're ready to take the next steps, this book is worth buying.
As a self-taught designer, this book increased my understanding of why I design things the way I do. It also revealed the gaps in my knowledge (which I am now attempting to fill), and offered some good inspiration for new projects. Very easy to read, and dip in and out of.