Книжка с окошками "Как это устроено"

This is an educational mini-encyclopedia for little inquisitive minds who ask a million questions about the things around them. The book with windows will explain how to build a sturdy and warm house, where electricity comes from, how it is useful, and how it is dangerous. Little ones will learn how much work is needed to grow grain and bake bread, and how and from what clothes are sewn.