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About the AEM Center

The National Center on Accessible Educational Materials for Learning at CAST provides technical assistance, coaching, and resources to increase the availability and use of accessible educational materials and technologies for learners with disabilities across the lifespan.

Learn more about the AEM Center

Why accessible materials & technologies?

Accessible versions of educational materials may mean the difference between learning barriers and learning opportunities.

Learn more about providing access to learning


NIMAS is a technical standard used by publishers to prepare “electronic files” that are used to convert instructional materials into accessible formats. NIMAC is a national center that stores NIMAS source files from publishers.

Learn more about NIMAS & NIMAC

Photo of Joy Smiley Zabala

Celebrating Joy

The Joy Zabala Fellowship in Assistive Technology & Accessible Educational Materials will support early career professionals in assistive technology and accessible materials. At CAST from 2007–2021, Joy was internationally known and beloved for her leadership and advocacy for learners with disabilities and their families.

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Upcoming AEM Center Events

Learn more about AEM Center events

Latest AEM Center Resources

Learn more about AEM Center resources


AEM in the IEP

Learn about the places in the IEP where it might be appropriate to refer to a students' use of AEM.

National AEM Center at CAST


National AEM Center Impact by the Numbers, October 2019 – March 2021

Learn more about the AEM Center's technical assistance throughout the United States from October 2019 – March 2021.

National AEM Center at CAST


AEM Navigator

Use the AEM Navigator to make informed, accurate decisions about the acquisition of accessible formats for students who need them.

National AEM Center at CAST

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