Alan Moore is a renowned British comic book writer known for his groundbreaking and influential work in the medium. "America's Best Comics" is a comic book imprint created and curated by Alan Moore in the late 1990s and early 2000s. This imprint was published by WildStorm Productions, which was later acquired by DC Comics.

"America's Best Comics" was conceived as a platform for Moore to explore and reinvent classic comic book genres and tropes in his own unique and often subversive way. Under this imprint, Moore created several series, each with its own distinctive style and approach. Some of the notable series published under "America's Best Comics" include:

1. Promethea: This series follows the adventures of Sophie Bangs, who becomes the host for the mystical entity known as Promethea. Moore used this series to explore themes of magic, mysticism, and the power of imagination.

2. Tom Strong: Tom Strong is a science hero in the vein of classic pulp heroes like Doc Savage. Moore's take on the character pays homage to the Golden Age of comics and pulp fiction.

3. The League of Extraordinary Gentlemen: Perhaps one of Moore's most famous works, this series brings together famous literary characters from the 19th and early 20th centuries, such as Captain Nemo, Mina Harker, and Allan Quatermain, to form a team of adventurers.

4. Top 10: Set in a city where everyone has superpowers, "Top 10" explores the lives of police officers who must deal with the challenges of law enforcement in a world of superheroes and supervillains.

5. Tom Strong's Terrific Tales: A spin-off of "Tom Strong," this series features a variety of short stories and genres, allowing Moore to experiment with different storytelling styles.

Alan Moore is known for pushing the boundaries of the comic book medium, both in terms of storytelling and themes. His work often delves into complex and thought-provoking subject matter, and he has been a staunch advocate for artistic freedom and creative expression in comics.