No other form of communication reaches people in as many parts of the world as television. Broadcasts are received by audiences in every country, in nearly every language. This fascinating… More →

The world's greatest inventors share the secrets of their… • Follow the inventing process step by step. • Read about the races to invent the lightbulb, telephone, and airplane. • Fi More →

Ever had an idea that you thought could change the world? • Thomas Edison lit up the world. • The Wright Brothers helped us fly around it. • Tim Berners-Lee helped us all communicate in… More →

Budding scientists will love learning about the properties of electricity by planning and carrying out investigations that explore how the energy form can be produced, conducted, and converted. More →

Budding scientists will love learning about the properties of heat by planning and carrying out investigations that explore how the energy form can be measured, conducted, and transferred. More →

Budding scientists will love learning about the properties of light by planning and carrying out investigations that explore how the energy form can be reflected, manipulated, and refracted. More →

Budding scientists will love learning about the properties of magnetism by planning and carrying out investigations that explore how magnetic force is affected by distance, strength, and size. More →

Budding scientists will love learning about the properties of sound by planning and carrying out investigations that explore how the energy form is affected by material density, pitch, and distance. More →

Ancient religions, colorful dances, and sweet music all come alive in this fascinating, newly-revised book on Iran's culture. Learn how to celebrate the new year with the festival of Nowrouj, More →

This newly revised book provides a basic introduction to contemporary Iran-the land that was ancient Persia. With more than 45 full-color pictures, this book takes readers on a virtual walk… More →