In this tale, the Wife of Bath's opinions, living experience, and even sex between her and her husbands are described in detail.  And this kind of autobiographic writing appeared for the first time when Chaucer wrote Canterbury Tales.  Chaucer expresses his own viewpoints towards society by describing the character, the Wife of Bath.  And in the whole story, the Wife of Bath also shows her thinking by telling a story of a knight and an old woman.  After reading the tale, we can find that the author actually writes from a woman's points of view though he is a male.  

  For the character Chaucer used to satire the society in 14th century, the Wife of Bath, she is not only a beautiful woman but also smart and eloquent. Because she is smart, she knows well how to take advantage of her beauty and eloquence to hold her sovereignty over her husbands by continuing doing a professional wife.  As a result, even though what she is doing is the thing that most women view as simple and ordinary, she has done quite successfully.   Relevant Links :  

http://icg.fas.harvard.edu/~chaucer/special/authors/dryden/  

http://www.wsu.edu:8080/~hanly/chaucer/chaucer.html  
 
http://www.siue.edu/CHAUCER/ 
http://www.vmi.edu/~english/chaucer.html