In this book every church and burial ground in Ireland is identified in relation to a townland or street address. Each townland is located in its appropriate civil parish, and each parish is listed in alphabetical order in its county and is preceded by a number which gives its location in "A New Genealogical Atlas of Ireland." An Ordnance Survey number lets the researcher pinpoint the church's exact location on a six-inch Ordnance Survey map. Churches that are now defunct and graveyards that have been separated from their churches can be located with this guide.