How many times have you wondered "What might have been?" It seems fitting that, of all people, a time traveler should be the focus of such an exploration. In "The Nth Doctor", the reader gains insight into the many different scripts (and variations on same) that might have become the next "Doctor Who" feature.
I came away from this book with a greater understanding of the process of putting a story together and producing it: how opportunities are gained and lost, how a small change in a character's background or motivation can make or break a plot and how a story can be more than the some of its parts but, at the same time, lessened by having too many parts. The only downside was that, by the very nature of the topic, many of the stories were very similar, up to and including identical or near-identical narrative.
Even if you're a budding writer, rather than an avid "Doctor Who" fan, this is a book you should consider reading.