Walking a Sacred Path:  Rediscovering the Labyrinth 
Author: Lauren Artress. Explores the historical origins and spiritual meaning of the labyrinth archetype as a metaphor for life and personal development. 

The Sacred Path Companion:  A Guide to Walking the Labyrinth to Heal and Transform 
Author: Lauren Artress.  The workbook companion to Walking A Sacred Path.

Labyrinth in Culture and Society:  Pathways to Wisdom 
Author: Jacques Attali.  A study of the multiple uses of labyrinth science through various cultures.

Peace Labyrinth-Sacred Geometry
Author: Beatrice Bartnett.  How to build, use and understand labyrinths as a tool for personal and global peace in our personal lives.

Chartres:  And the Birth of the Cathedral 
Author: Titus Burckhardt.  A study of the famous cathedral at Chartres and an exploration of how the cathedral-builders defined their civilization through art.