Visit the doctor with the characters from Nickelodeon's PAW Patrol in an all-new storybook that includes stickers A trip to the doctor's office can be scary. Luckily, Marshall and the rest of Nickelodeon's PAW Patrol are here to explain what happens during a checkup and why there's nothing to worry about. Girls and boys ages 3 to 7 will love this full-color storybook, which includes more than 30 stickers.