Margaret Fuller (1810-1850) was an American writer, journalist, critic, and women's rights advocate. She is best known for her work as the first full-time female book reviewer in journalism. Fuller was associated with the American Transcendentalist movement, contributing to its publication 'The Dial.' She later became the editor of 'The Dial' and a groundbreaking feminist work titled 'Woman in the Nineteenth Century.' Fuller's writings focused on women's rights, education, and social reform.