by Erickson, Millard J. How do these books differ by same author?

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https://www.logos.com/product/52204/introducing-christian-doctrine-third-edition

https://www.logos.com/product/29621/christian-theology-3rd-ed

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JT (alabama24)

From the book's description:  "This book is an abridged, less technical version of Erickson’s classic Christian Theology."

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https://community.logos.com/discussion/comment/822590#Comment_822590

Thanks

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