The Indus Valley people built cities with indoor plumbing and sewage systems. Their civilization is one of the oldest on Earth, and also one of the most mysterious.

The Indus Civilization is part of the Super Science Facts series that engages readers in grades 5 to 12 with fun science facts and colorful images on every page to support comprehension. The series covers Physical Science, Life Science and Social Sciences in individual sets. The minimal-text format (1,700 to 2,000 words per book) introduces content vocabulary defined in context and repeated in a glossary.