Hill, Richard (August 17, 2012). Finding Family: My Search for Roots and the Secrets in My DNA. Published by CreateSpace. ISBN 9781475190830.
From the publisher's book description: "Finding Family is the first book to chronicle the paradigm-shifting application of genetic genealogy to adoption search"
(see also "DNA helps man unlock mystery of his birth father's identity" by Sue Thoms, The Grand Rapids Press)
This memoir is a tale of perseverance over many years in one man's search for answers about his origins. The effort he put into his search is enormous. I understand what drives him because I am still searching. It is one of very few books that incorporate the magic of DNA testing as an aid to crack such a case, although you can encounter many similar stories online now. I would especially recommend this book to those looking for easy answers and those ready to give up, to give them some perspective about what may be required of them and how the passage of time can help them in more ways than one.