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The primary genre of Akira Toriyama's works, including Dragon Ball and Dr. Slump, is shōnen. This genre is aimed primarily at a young male demographic, typically between the ages of 10 and 18, and often features themes of action, adventure, comedy, and friendship. Toriyama's works are known for their fast-paced storytelling, dynamic characters, and engaging plotlines, making them popular among readers of all ages.