John Dewey was an American philosopher and educational reformer. Some of his important works include My Pedagogic Creed, The School and Society, Democracy and Education, and Experience and Education. Dewey believed that values are subjective and change over time and space, that knowledge is a means to improve life through experience, and that thinking is meaningful when related to solving problems of life. He advocated for an education system that develops students' abilities, instills democratic values, and prepares students for the future. Dewey's ideas influenced modern progressive education through methods like learning by doing and the project method.