good wiki

Braille Institute of America

The Braille Institute of America (BIA) is a nonprofit organization with headquarters in Los Angeles providing programs, seminars and one-on-one instruction for the visually impaired community in Southern California. Funded almost entirely by private donations, all of the institute's services are provided completely free of charge.

More at Wikipedia

About

You might be interested in

Braille

Braille is a tactile writing system developed by Louis Braille in the early 19th century.

Braille literacy

A sighted child who is reading at a basic level should be able to understand common words and answer simple questions about the information presented.

Library of Congress

The Library of Congress is the national library of the United States and one of the largest libraries in the world.

Nonprofit organization

A nonprofit organization, also known as a not-for-profit organization, is an entity that operates to fulfill a specific purpose or mission, rather than to generate profit for its owners or shareholders.

United States

The Wikipedia page on the United States provides a comprehensive overview of the country.