What is the author's style in Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time by Dava Sobel?

The structure of the book is fairly straightforward. The book is only 175 pages, yet it contains fifteen chapters. Each chapter covers a distinct element of the story. Sometimes the chapters begin with a story that winds its way into the main plot line, but in general each chapter can stand alone, and as a whole, the chapters tell a well-ordered story.