I came across the following site that has a wealth of free information on Geographic Information Systems'(GIS)-related information by Berry & Associates // Spatial Information Systems (BASIS).  Map Analysis is a great subject for anyone interested in analyzing maps especially through GIS. A link to the material is http://www.innovativegis.com/basis/

There are presentation slides in the "Online Books and Materials: Map Analysis Workshop Materials" by Joseph K. Berry that go over various topics in the workshops presented such as Introduction and Data Considerations, Spatial Analysis Techniques and Considerations, Spatial Statistics Techniques and Considerations, GIS Modeling Approachesand Considerations , among others.

There is also a free online book which can be downloaded that covers a wealth of topics such as Spatial Interpolation Procedures and Assessment, Where Is GIS Education?, Analyzing Accumulation Surfaces, Linking Data Space and Geographic Space, Analyzing Landscape Patterns, Applying Surface Analysis,  Human Dimensions of GIS, Overview of Spatial Analysis and Statistics, Spatial Data Mining in Geo-business and much more.
A link to the book can be found here: http://www.innovativegis.com/basis/mapanalysis/

Happy Reading!