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The International Federation of Dyslexia and Dyscalculia Associations (IFDDA) is an umbrella association of international non-profit dyslexia and dyscalculia organizations that focus their efforts on providing help for dyslexic and dyscalculic people.
The American Dyslexia Association Inc. is a non-profit organization that focuses its efforts on providing help for dyslexic and dyscalculic people with free information and teaching aids.
