There are many books on the subject of genealogy reference, so much so, it is a nightmare and a daunting experience as to which reference books to plumb for. Peter Christian, has produced such a book, that is written in plain English, for the beginner and more advanced genealogist. The book is chronological in format with the most uptodate references of internet resources and the record offices/agencies available. The book is non biased towards any agencies, but does point out the pitfalls of information submitted to the various sites, as not being accurate without being verified manually from record offices. Such information apparently goes unchecked and therefore, inaccuracies, occur in the compilation of genealogical compilations. This is something Peter Christian, quite rightly, points out. This in mind, Peter Christian has covered all aspects of the science of researching family history. A very well written reference book and one that every researcher of genealogy should have. I certainly recommend this book for persons looking to purchase on this subject!!