Dogs. You cannot move for them. They are absolutely everywhere and whether in the handbag of a celebrity, rounding up cattle, destroying your shoes or pulling a chilly Canadian through the tundra, they play a big part in most cultures on earth. We've come a long way since the days of yore when wolves busied themselves scaring our forebears - now we're firmly in charge of our pooches. Through selective breeding, dogs now come in a mind-boggling range of shapes and sizes. On top of the obvious physical differences, this canine diversity has left us with breeds that exhibit certain personality traits - from aloof, independent sorts to excitable pack animals. So with all this choice - which breed you choose says a lot about who you are and what you like doing. It's a science, people. What Your Dog Says About You covers 50 of the most popular dog breeds - and explains how choosing a particular breed reflects on the owner's personality.