I'd like to add a more specific follow-up request. I have read Atkinson's An Army at Dawn (and it's sequels) and while they are well written and I particularly love the maps, I was a bit disappointed at the focus on high level strategy and operations. I would like to find one or more personal accounts of enlisted soldiers who fought in the campaign, told from their viewpoint, not focusing on the plans of the generals. Many such accounts exist of soldiers who fought in Europe from D-day through to the German surrender, but I have yet to find an account told from the viewpoint of an ordinary soldier on the front line in North Africa, either from the American or the German point of view.
You might want to check out "Northwest Africa: Seizing the Initiative" by George F. Howe. This book was first published in 1957 as part of the multi-volume official history of the U.S. Army known as the "Green Books" and is available as a PDF download from the Army's Center for Military History website.