From excitable old English sheepdogs to an intrepid Shih Tzu, these dogs are really living life on the edge.

Not content with taking a back seat, they've stuck their heads of the car window to size up the horizon and see what's going on.

The funny and uplifting moments of canine curiosity were captured for a new book, aptly named Dogs Hanging Out Of Windows, published by Orion Books this month.

The dog-lovers' tome contains over 90 striking portraits of pooches the world over with their heads to the wind. Come grab a sneak preview from the series, above.

Heartwarming and funny photos of dogs living life in the fast lane