Galoob

Lewis Galoob Toys, Inc., was a toy and video game manufacturing company headquartered in South San Francisco, California. They are best known for creating Micro Machines, which accounted for 50% of its sales in 1989, and distributing the Game Genie in the United States.

From the Wikipedia article “Galoob”, licensed under CC BY-SA 4.0.

Galoob is no longer an active publisher (defunct since 1958). Its books may still be in print through successor companies or available second-hand and in libraries.