While the book is primarily written for architects, the described framework that is used to capture client needs and define the project problem could easily be applied to a wide range of projects, such as software development. I can see why the book is considered a classic guide after five decades in print, with regular revisions still being published. I loved the simple graphics that are used to illustrate key concepts, and the Problem Seeking framework encourages the entire project team to think about the less obvious aspects of a project before jumping to shiny solutions. It's a great reference book for project managers to keep close by, both for perspective and inspiration, and certainly worth getting in paperback.