The Great Courses Plus, now part of the Wondrium learning service, is an online video learning platform for lifelong learners, history buffs, science enthusiasts, and language learners that streams thousands of professor-led video courses across history, science, philosophy, languages, music, food, and travel. Marketed as professor-led online learning, The Great Courses Plus combines streaming access to thousands of video courses taught by university professors, history, science, philosophy, languages, mathematics, and humanities content, food and cooking lessons, travel destination courses, music appreciation, downloadable course guidebooks, offline viewing on mobile, integrations with Roku, Apple TV, Amazon Fire TV, and major streaming devices, plus dedicated iOS, Android, and web apps. The Great Courses Plus is a strong fit for lifelong learners exploring new subjects, history buffs going deep on topics, science enthusiasts following university-level lectures, and self-learners replacing standalone courses.