Thuvia, Maid of Mars

Warlord of Mars

The Gods of Mars

The People That Time Forgot

The Master Mind of Mars – Audiobook: The Master Mind of Mars: A Science Fantasy Novel - Edgar Rice Burroughs' Extraterrestrial Adventure: Unraveling the Master Mind of Mars

At the Earth's Core (Unabridged)

Lost On Venus (Unabridged): optional

The Moon Men (Unabridged): optional

A Fighting Man of Mars (Unabridged): optional

The Land that Time Forgot

The Moon Maid

A Princess of Mars

The Master Mind of Mars