One of my daughters gave me this genealogy book for Christmas, by George G Morgan and Drew Smith, titled Advanced Genealogy Research Techniques.
And you know what? I don't know everything!
Just by page thirteen I had already read tips I had not thought of. Thanks Mel!
Many genealogists share their knowledge by writing books. Some are specific to an area, family or an event, others more general with tips and tricks.
Check your local Historical or Genealogical Society, Amazon online, and the following links for books that may help you with your family tree. Use keywords "genealogy books" in your favourite search engine.
Books on Irish Genealogy, Mike O'Laughlin, Irish Roots Cafe