Using this magic water doodle book is easy. First, fill the pen with water. Then, gently brush the pen tip over the paper, and you'll see the colorful forest animals appear. This book is great for travel, so you can take it with you on trips. It's suitable for kids 3 years old and up. Make sure to keep the pen filled with water for continuous fun. When not in use, store the book in a dry place to keep it in good condition. Enjoy exploring the forest with these magical doodles!