Complex sentence: Although the books are fiction, their characters are based closely on Lovelace's own family and friends, and the settings reflect extensive research done by Lovelace, a historical novelist, and illustrator Lois Lenski, as well as Lovelace's memories.
Split into simpler sentences: Although the books are fiction, their characters are based closely on Lovelace's own family and friends. The settings reflect extensive research done by Lovelace, who was a historical novelist, and illustrator Lois Lenski, as well as Lovelace's memories.