Complex sentence: While apprenticing under Kirby, Evanier began writing foreign comic books for The Walt Disney Company, followed by his scripts for the American Disney Comics, Gold Key Comics, and comics for the Edgar Rice Burroughs estate.
Split into simpler sentences: While apprenticing under Kirby, Evanier began writing foreign comic books for The Walt Disney Company. From there he was brought in to write stories for the American Disney Comics, Gold Key Comics, and comics for the Edgar Rice Burroughs estate.