Unlike a textbook or how-to book, which genealogists should consult prior to venturing upon a research trip, this is the perfect book to take with you once you have embarked. The latest title from the prolific Mrs. Jacobson is designed to remove not only the foregoing stumbling blocks but also to answer thousands of other practical questions which quite naturally arise during the course of research. For example, the "Field Guide" includes sections on the basics of dating photographs and identifying historical eras from hairstyles or clothing. Similarly, legal terms found in genealogical records are identified in one of the several glossaries compiled by Mrs. Jacobson. Other lists cover antiquated names of diseases and calamities, as well as units of measurement used in bygone days. There are glossaries of genealogical terms, nicknames, surnames, place names, and occupations. The author has prepared a section on problems to anticipate at the county courthouse, offers hints for deciphering old handwriting, discusses different types of calendars, and has incorporated time lines of American history, migration, and transportation.