Book on research?

I've been reading some of the emails/postings regarding a book that has information on family names (research). What book is/are they referring to? Would I be able to request a search on my family? I would not want to impose but if it would help me to find some of my ancestors, I would appreciate any assistance. I'm sure we all know how difficult some searches can be---especially as we get into the 17-1600. Please let me know. Thank you.

Ann Marie Gutierrez

P.S. My searches are in Arandas and Jalostitlan. The family Name is Gutierrez.
My Mother's side of the family was Gutierrez and my ex-husband's Father was also Gutierrez and also from the area of Jalostitlan and Aguascalientes. My Father-in-law always teased me about maybe our being "parientes" since I looked so much like his family.

I also would like to THANK YOU ALL for the help I've been given so far in my searches. You are a great group of people--devoted to helping others and I thank you from the bottom of my heart. As it was through "Nuestros Ranchos" assistance, that I found my Mother's birth certificate....Joseph, you hold a special place in my heart for that find. Thank you.