\chapcontents {1}{The Crystallographic Groups Catalog}{3} \seccontents {1.1}{How to access the data of the book} {3} \seccontents {1.2}{Representation of space groups} {4} \seccontents {1.3}{Crystal Families} {6} \seccontents {1.4}{Crystal Systems} {6} \seccontents {1.5}{Q-Classes} {7} \seccontents {1.6}{Z-Classes} {10} \seccontents {1.7}{Dade groups} {12} \seccontents {1.8}{Space groups and space group types} {14} \chapcontents {}{Bibliography}{18} \chapcontents {}{Index}{19}