If you can’t find the title you’re looking for in a library or a bookshop, you might come away instead with a book you saw on a shelf nearby. You wouldn’t have thought to search that other book out originally, but you’ve found it because of its happy proximity to what you were looking for. Some people describe such discoveries as “good companions”.
Amazon has taken this to another level with profiling. They track what you bought, or even the sorts of things you looked at but did not buy, and then suggest related titles. And if you’re motivated by virtual peer pressure, they also tell you “people who bought that book also bought this book”.
I was delighted to see this title was offered as a “good companion” for my Doctor Who audio Pest Control:
Of course, it’s because they’re both read by the splendid David Tennant. Nevertheless, I like the idea of being on the same virtual shelf as Shakespeare.