"Pocket Guide" is a bit of misnomer, for in fact this 7x10-inch publication is one of the most complete and informative books on genealogical research in Ireland ever written. A complete revision of the original "Pocket Guide" written in 1991, this book begins with chapters on the background of Irish genealogy and how to get started in your research, Mitchell describes the nature and uses of all significant record sources in Ireland, including but not limited to civil and parish registers, gravestone inscriptions, wills, census returns and census substitutes, the Griffith's Valuation, tithe books, newspapers, hearth money rolls, the registry of deeds, estate records, and ordnance survey memoirs. Also included are the addresses, phone numbers, e-mail addresses, and websites for the major record repositories, as well as a section discussing DNA and genetic genealogy as applicable to Irish genealogy research. Finally, Mitchell offers a step-by-step guide to tracing your Irish ancestors, first itemizing the three steps researchers should take first, and then including case studies to illustrate how to apply these steps.