A Guide to Imagery (2003–2010)
- Gods and Heroes in Art (2003)
- Gospel Figures in Art (2003)
- Saints in Art (2003)
- Nature and Its Symbols (2004)
- Old Testament Figures in Art (2004)
- Angels and Demons in Art (2005)
- Artists' Techniques and Materials (2006)
- Astrology, Magic, and Alchemy in Art (2007)
- Food and Feasting in Art (2008)
- Love and the Erotic in Art (2010)