Text and detailed drawings follow the planning and construction of a "typical" castle and adjoining town in thirteenth-century Wales.

Millions of people live in cities around the world, but have you ever wondered how cities work? All those people need clean water to drink, a safe place to live, and a way to get all around the city! How do you take care of all those people's needs? Your city has a plan for that. Read and find out all about the systems a city has to help keep everyone safe, healthy, and happy.

"Discover how engineering can help us adapt to changing climates, explore ancient architecture still standing today, and witness a new invention come to life. Meet the engineers whose groundbreaking ideas changed the world, then put your engineering skills to the test with the at-home experiments."--

Provides step-by-step instructions for experiments using readily obtainable materials that demonstrate scientific principles related to engineering disasters.

Learn about the Panama Canal and how it was built.

In Ruby's world anything is possible if you put your mind to it even fixing her father's broken computer! Join Ruby and her new friend, Mouse, on an imaginative journey through the insides of a computer in search of the missing Cursor.