Q. Is there a tutorial on Chicago style?
Try these two resources:
-Chicago Manual of Style Online: http://www.chicagomanualofstyle.org/tools_citationguide.html.
-EasyBib also has a joint Chicago/Turabian guide at: http://content.easybib.com/citation-guides/chicago-turabian/
Waterfield Library has the most recent editons of the style guides for Chicago (16th) and Turabaian (8th) available at the Information Desk for you to use in the library.