Hester Lynch Thrale Piozzi (1741–1821) was a pivotal literary figure of the late eighteenth century, known for her roles as a biographer, diarist, travel writer, and literary hostess. Though often remembered for her relationship with Samuel Johnson, she was an accomplished author in her own right, producing works that provided valuable insights into the intellectual and social history of the period. As the hostess of the Streatham Circle, she presided over one of the most influential literary salons of her time, entertaining guests such as James Boswell, Frances Burney, Edmund Burke, and Sir Joshua Reynolds. Her published works—including Anecdotes of the Late Samuel Johnson (1786), Observations and Reflections Made in the Course of a Journey through France, Italy, and Germany (1789), and the extensive personal journal Thraliana—are significant contributions to eighteenth-century biography, travel literature, and life writing. Piozzi’s controversial second marriage to the Italian musician Gabriele Piozzi in 1784 resulted in social ostracization and criticism from former friends, including members of the Bluestocking Circle and Johnson’s literary followers. However, her later years were marked by continued literary production, including Retrospection (Thrale 1801), a historical survey that demonstrated her engagement with intellectual and historiographical debates, and British Synonymy (Thrale 1794), one of the earliest English “dictionaries” of synonyms and a linguistic compendium designed to enhance the elegance and precision of conversational exchange. Despite being overshadowed by contemporary male writers, Thrale’s literary legacy has been reassessed by modern scholars who recognize her role in shaping biography, travel writing, and women’s intellectual history.