Charles Knief has written a series of 4 books. Here, you can see them all in order! (plus the year each book was published)
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4 books in this series
The author is Charles Knief.
There are 4 books in the Charles Knief series.
The first book was written in 1996, and the last book was written in 2001 (we also added the publication year of each book right above the "View on Amazon" button).