International Tables for Crystallography is the definitive resource and reference work for crystallography and structural science. Volume B presents accounts of the numerous aspects of reciprocal space in crystallographic research. This volume is a vital addition to the library of scientists engaged in crystal structure determination, crystallographic computing, crystal physics and other fields of crystallographic research. Graduate students specializing in crystallography will find much material suitable for self-study and a rich source of references to the relevant literature. New to this edition: A new chapter on modern extensions of the Ewald method for Coulomb interactions in crystals. Three new sections on electron diffraction and electron microscopy in structure determination, describing point-group and space-group determination by convergent-beam electron diffraction, three-dimensional reconstruction, and single-particle reconstruction. Substantial revisions to the chapters on space-group representations in reciprocal space, direct methods, Patterson and molecular replacement techniques, and disorder diffuse scattering More information on the series can be found at: http://it.iucr.org