In this unique introduction to the Hidden World:

Presents information about whales, in a text on pages with transparent overlays that change the pictures.

Experience being archeologists, exploring a newly discovered tomb. Uncover ancient symbols, paintings, and treasures using a paper flashlight, and even find a mummy inside the burial chamber!

Explore the amazing underground world of caves adn caverns, lakes and glaciers, just as if you were a pot-holer.

Laminated pages with transparent overlays introduce over fifty different plants from around the world and give details about their growth, life cycles, and value to animals and humans.

Presents famous paintings from around the world, using die-cut and transparent pages which permit the reader to "discover" interesting aspects of the artworks.

Using simple text, pictures, and transparencies, this board book examines some basic information about dinosaurs.

Describes the physical characteristics, life cycle, and different kinds of butterflies. Features see-through pages that change the pictures.

Transparencies, simple text, and illustrations introduce various tools and their uses, including the hammer, screwdriver, and electric drill

Illustrations with transparent overlays and brief text introduce children to the diversity of people all over the world.