World Book offers the most accessible print and digital products to help striving readers, build fluency, and increase comprehension.

At every level, World Book content is the most accessible for your students.

What does this mean for your readers?

• World Book articles are written at a level from one to four grades lower than other articles intended for the same age group.

• With 68% of 4th graders and 71% of 8th graders in the U.S. reading below the "proficient" level*, it is critical that readers have access materials they can understand.

*Source: National Assessment of Educational Progress (NAEP) 2007

1. World Book is better positioned to serve more readers than any other reference publisher. This chart compares World Book's 100 most frequently read articles with the same topics in competing reference products. Anaylysis performed by the most widely adopted analyzer in the U.S. shows that 97% of World Book articles are written at or below a 9th-grade reading level.

2. The contrast is just as significant for databases aimed at elementary students. Approximately 95% of articles in World Book Kids and World Book Discovery Encyclopedia are written at or below a 5th-grade level.

Download pdf that shows articles used in this study, with grade level for each article.

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