General Reference

Build and share timelines. Use your own events and images or add content and images from World Book.

Thousands of colorful illustrations, diagrams, and maps enrich thousands of articles, with teacher guides.

Thousands of colorful illustrations, diagrams, and maps enrich thousands of articles, with teacher guides.

Identifying flint artifacts.

Ohio snake identification guide.

Ohio tree identification guide.

An excellent way to get a quick authoritative and accessible overview of a subject.

Offers exclusive full text for many top consumer small business reference books, as well as tools to address many small business topics. Includes business videos, a help and advice section and details on how to create business plans.

Containing resources that present multiple sides of an issue, this resource provides the basis from which students can realize and develop persuasive arguments and essays, better understand controversial issues and develop analytical thinking skills.

Reference content in humanities, social sciences, and science.