This book is contributed to investigate the interactions between group
theory and graph theory. In more than 60 years such interactions have
greatly stimulated the development of each other, especially the theory
of symmetric graphs has almost developed in parallel with the theory of
permutation groups. In the study of permutation groups the information
of point stabilizers of a primitive group is crucial to the structure of
the primitive group. In this book we study primitive groups with soluble
stabilizers, a classification is gievn. Then the outcome is used to
classify certain classes of symmetric graphs, and several important
classification results are obtained. This book is intended as a report
of a series of researches concerning the two interactive fields, it also
provides a reasonable coverage of basic concepts, ideas, and skills of
permutation groups and symmetric graphs. The book is addressed primarily
to researchers and postgraduate students in the fields. To read the book
the reader is expected to have some basic knowledge of permutation
groups, finite simple groups and graphs.