Not books, but there is a free SAS e-course and YouTube videos on the basics.   support.sas.com/training/tutorial https://support.sas.com/edu/schedules.html?ctry=us&crs=STAT1   I would highly, highly recommend reading the documentation as well.  And, check out statsoft textbook for beginner guides to statistics in general. ... View more

Sorry, that won't factor in last week, you'll have to also include a date filter. I'll leave that up to you because we can't see how your query is working. ... View more