Old Baensch Marine Atlases?

[JRS]

I like looking at the old aquarium literature and have never read these. Does any one know the primary difference between the numbered Marine Atlases 1,2,3 and the single volume: Marine Atlas: The Joint Aquarium Care of Invertebrates and Tropical Marine Fishes? My impression is the first 3 are different species lists and the single more of a care of book? Assuming they are not different versions/format of the same material?

Thanks

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