Market: Students and researchers in vacuum and surface science, microscopy, and semiconductor physics. This definitive work was based on four lectures presented at Harvard University in 1958. When it was written, field emission was one of the few techniques available for surface studies and the attainment of ultra-high vacuum was a little-known art. Though more sophisticated treatments have since been developed, Gomer's pioneering work remains valid to this day.Contents: Theory of Field Emission. Field-Emission Microscopy and Related Topics. Field Ionization and Related Phenomena. Some Applications of Field Emission to Adsorption. Some Miscellaneous Applications of Field Emission.