Click on the link to your right for more information. The external link is a good list of resource books. I would add to that a volume from the US Army official history of WW2 and the volume entitled "The Cross-Channel Attack" by Gordon A. Harrison. This only covers the plans and operations of the US forces. My favorite books that I have read are: "D-Day June 6, 1944 : The Climactic Battle of World War II" by Stephen Ambrose "The Bedford Boys" by Alex Kershaw, which focuses on a group of boys from a small town in Virginia and how they died on Omaha beach and the impact their loss had on the town and the families.