Complex sentence: Rollins found the authors of the Doc Savage series inspirational for his writing, and, as a youth, he acquired an extensive collection of the popular 1930 ′ s and 1940 ′ s pulp magazine stories.
Split into simpler sentences: Rollins found the authors of the Doc Savage series inspirational as a youth. He acquired an extensive collection of the popular 1930 ′ s and 1940 ′ s pulp magazine stories.