Steve Shelley, by taking a chronological approach to light design, illustarates exactly what goes into a successful design. He defines his terms, explains why he does things, and provides anecdotes and insights that make the book entertaining and easy to read.
The final section of the book on how to focus lights will teach you more about creating and implementing a light design than any other book you have, can or will read.
But - it offers a very good guide to the real-world contraints and demands of lighting. The author give very concrete and useful suggestions and advice. Analysing a complete design ('Hokey') step-by-step is a clever move. It is also the perfect book for those who want learn how to accurately document their designs to last nut and bolt. Even with my 20+ years in lighting and lighting design, I found this book a worthwhile addition to my collection of lighting textbooks.