Every version of The Lord of the Rings: The Rings of Power — the books, films & series, compared across media.
Middle-earth — a world of hobbits, elves, dark lords, and a single corrupting Ring — first came to life in J.R.R. Tolkien's sprawling novels and has since been retold across animation and television. The Lord of the Rings (book), The Lord of the Rings (1978 film), and The Lord of the Rings: The Rings of Power each draw from the same vast mythology: the rise of evil, the courage of unlikely heroes, and a world breathtaking in its detail and scale, now explored across three different media.
Yes — it draws from the same Middle-earth mythology established in J.R.R. Tolkien's The Lord of the Rings, originally published between 1954 and 1956, which invented much of the world the series inhabits.
Three: Tolkien's original The Lord of the Rings novels (1954), the 1978 animated The Lord of the Rings film, and the 2022 television series The Lord of the Rings: The Rings of Power.
If you want the foundational source, Tolkien's The Lord of the Rings (1954) is where Middle-earth began; if you prefer a visual entry point, the 1978 animated film follows the core quest of Frodo and the fellowship.