This collection serves as an expansive, satirical archive documenting the history and eccentricities of the Simpson family and their neighbors in Springfield. Matt Groening, the creator of the long-running animated series, utilizes a mock-biographical framework to present the characters as if they were real individuals with documented pasts. The book synthesizes show lore, character profiles, and visual gags to expand upon the established universe of the television program.

The book functions as a supplementary companion piece for dedicated viewers, offering a lighthearted expansion of the show's established lore. Its tone remains consistent with the irreverent humor of the television series, prioritizing entertainment value over rigorous academic analysis.