ProLiteracy Worldwide is an international non-profit organization with the aim of spreading literacy in adults in various parts of the world. With support from people and programs, the organization has grown to become the largest adult literacy and basic education membership organization in the United States, aiming for a more sustainable society by growing the educated adult population. 

For over 50 years, ProLiteracy has been committed towards creating a world where all adults are literate, working with new readers and learners in cooperation with other organizations to aid adults in acquiring the reading, writing, computer, math, and English skills they need to succeed in any endeavor. It's a daunting task so it's a good thing the organization has 1,000 member programs in place across all 50 states as well as the District of Columbia, alongside projects in 34 developing countries with assistance from more than 50 non-governmental organizations.

ProLiteracy was officially formed when Literacy Volunteers of America, Inc. and Laubach Literacy International joined forces in 2002. Laubach Literacy International has been in operation since 1930 so it brought to the merger decades of experience that was definitely beneficial to the organization. Literacy Volunteers of America, Inc, on the other hand, started in 1962 after Ruth Johnson Colvin founded the group after hearing Dr. Frank Laubach talk about illiteracy in other parts of the globe which opened her eyes to the problem festering in her very own country. 

Around 60% of funding for ProLiteracy comes from the sales of educational materials from the organization. The other 35% is sourced from private donors, including corporations, individuals, and other foundations. One of the programs offered by ProLiteracy thanks to its funding support is the National Book Fund, a grant that directly provides new books and materials to local literacy services, like adult basic education initiatives, women-focused programs, English-as-a-second-language  programs, and programs involving parents and their children.