Postcards from Buster, also called Buster's Postcards, is a children's television series, containing both animation and live-action that airs on PBS, and is a spin-off of the Arthur cartoon series. The show stars Arthur's best friend, 8-year-old rabbit Buster Baxter. Inspired by a 2003 episode of Arthur entitled Postcards from Buster, the television series was produced by Cinar (now known as Cookie Jar Entertainment), and first aired on October 11, 2004 on PBS Kids GO!, Also by Marc Brown Studios.

Buster's interests include eating anything, reading comic books, and playing video games. Buster's personality is that of a fairly intelligent and curious child. He also believes that extraterrestrials are real. Buster's parents are divorced; in this series, Buster is seen with his father, Bo Baxter.

Arthur Read and many other characters from the PBS Kids and PBS Kids GO! animated television series Arthur make cameo appearances in this series.