Anna Claybourne has written over 150 children's books on all kinds of subjects, from sharks, black holes and splitting the atom to how to draw, Shakespeare's life, and Greek myths and legends. She knows a lot about conservation in the rain forests of Costa Rica as she once volunteered there for three months. She likes space, sewing and music, plays the trombone and loves going camping. Luke Séguin-Magee illustrates children's books and his own comics. He likes to wear a straw hat in the summer, pretend he can make music on his Cavaquinho, entertain his four kids and wife, chop wood, drink espresso and ride his bike. Luke hails from Canada and resides in Stockholm.

• 1: Dogs Do Forces2: Pug Tug of War3: Greyhound Grasps Gravity4: Back in Time5: Accelerating Alsation6: Basset Hound Goes Round and Round7: Dogs in Space8: Puppy Pressure9: Slippery Sled10: Spot the Spaniel's Spot the Difference11: Shih Tzu's Don't Swim12: Lurcher Discovers Inertia13: Professor Pooch's Forces Round-up14: Poodle's Pop Quiz15: Answers, Further Information and Index