You could start with this one: Excel Data Analysis For Dummies® by Stephen L. Nelson (Author) <A HREF="http://www.amazon.com/exec/obidos/tg/detail/-/0764516612/qid=1057245655/sr=8-2/ref=sr_8_2/103-3966555-9214250?v=glance&s=books&n=507846" target="_new">http://www.amazon.com/exec/obidos/tg/detail/-/0764516612/qid=1057245655/sr=8-2/ref=sr_8_2/103-396655...</A> In that page there are links to other similar books. (Warning: none of them is directly covering stock market data analysis. The techniques are sound, though) H.