The canonicity of the Song of Songs has been questioned less than the holiness of the book. This article discusses some of the history of this matter, and explains that the book is to be read openly, for the Word of the Lord is pure.
This article discusses why and how the Song of Songs received a place in the canon. To that end it discusses its divine and human authorship, as well as the appropriateness of such a book in the Bible, as it highlights sexuality as a gift from God.
How shall we interpret the Song of Songs? This article discusses ways in which it has been interpreted—as allegory, drama, a collection of wedding songs, and a cultic book—and then suggests how it should be interpreted, as a manual for those engaged on their way to marriage.
The mandrake plant mentioned a number of times in the Old Testament is studied in this article. There is a reference in the Song of Songs 7:13 to this plant recognizing the fragrance of the mandrake flower as well as the familiar aphrodisiac use of it.