I'll try to type in a bunch of it. An important prerequisite to geostatistical case studies and research is the availability of flexible and understandable software.
Flexibility is achieved by providing the originial Fortran source code.
A detailed description of the theoretical background along with specific application notes allows the algorithms to be understood and used as the basis for more advanced customized programs. Proofs, lengthy theoretical discussions, and heavy matrix notation are omitted as much as possible. Instead, this guidebook contains many footnotes, application notes, brief warnings, and multiple cross references.