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longdesc or aria-describedby for infographic

for

From: Angela French
Date: Nov 23, 2015 6:25PM

Hello,
I have an infographic and have been provided a description for it that is 2313 characters long. I'm wondering whether to use <img longdesc="description...." /> or use aria-describedby and position it off page.

Can anyone advise me as to what is the most preferred by users of screen readers?

Thank you

Angela French
Internet Specialist
Washington State Board for Community and Technical Colleges
360-704-4316
<EMAIL REMOVED> <mailto: <EMAIL REMOVED> >
www.checkoutacollege.com<;http://www.checkoutacollege.com/>;
www.sbctc.edu<;http://www.sbctc.edu/>;