Seismic　coherence　is　of　the　essence　for　seismic　interpretation　as　it　highlights　seismic　discontinuity　features　caused　by　the　deposition　process,　reservoir　boundaries,　tectonic　movements,　etc.　Since　its　appearance　in　1995,　seismic　coherence　has　become　one　of　the　most　popular　and　highly　recognized　interpretation　tools.　In　the　last　25　years,　there　have　been　different　kinds　of　approaches　to　calculate　seismic　coherence　attributes,　such　as　cross-correlation,　semblance,　and　eigen-structure.　We　have　also　seen　different　coherence　enhancement　techniques　and　modified　ways　for　coherence　calculation　to　address　different　problems　in　diverse　field　applications.　In　this　survey,　we　provide　a　general　overview　of　seismic　coherence,　which　is　commonly　used　to　delineate　structural　and　stratigraphic　discontinuities.　We　cover　the　development　of　the　seismic　coherence　attributes　via　introducing　existing　approaches　for　coherence　calculation,　enhancement,　spectral　band-limited　coherence　methods,　and　offset-/azimuth-limited　coherence　methods.　In　addition,　we　also　discuss　the　possible　coherence　artifacts　and　pitfalls.　To　better　compare　different　techniques,　field　applications　are　provided,　where　different　disciplinary　coherence　attributes　with　enhancement　techniques　are　calculated　for　the　channel,　fault,　carbonate　karst,　and　volcano　interpretation.