"Put On a Hat and Say Hello" invites children to wear traditional hats from countries around the world and greet others just like people from that country would. Starting with the Mexican sombrero on the cover and ending with a colorful pop-up Brazilian samba festival hat, kids will feel as though they've just taken a trip around the world. Book Features - Format: This book has a unique hat-shaped design. When held up to the forehead, it feels just like trying on traditional hats from different countries. It's sized with 5- to 6-year-olds' faces in mind. The final page features a vibrant pop-up for an unexpected visual delight. - Content: Cultural elements from countries around the world are naturally woven into the background art. Iconic buildings and cultural symbols appear throughout, everyday life is depicted, and traditional patterns and colors are used to give children an indirect experience of each country's cultural identity. Although the book may look simple at first glance, thorough research and fact-checking went into selecting and arranging each country's most representative cultural symbols. - How to Use: The main text consists of greetings from each country, allowing children to put on a hat, pretend to be a person from that country, and role-play saying hello in that language. Small-print explanatory text, meant to be read aloud by parents, provides deeper information about each country and its hat. Younger children ages 4-5 can enjoy wearing the hats while looking in a mirror or taking photos, while older children can use the book to experience world cultures indirectly. This book pairs well with 'Countries Around the World' themed activities in preschool curricula. - Background: This picture book began as a creative idea from university students in a 'Design Project' course at the Department of Design, Korea National University of Transportation (Hankyong National University), developed through industry-academic cooperation with Borim Press. The "The World Is My Friend" series features hat- and mask-shaped board books that let children play dress-up while gaining an indirect, multicultural experience of countries around the world through role play.