For pure data visualization, Tufte is absolutely the brilliant and helps you avoid a whole raft of bad behavior that leads to sloppy, hard to understand graphics. I can't second your suggestion enough.
I would add that his one day course is a great way to get started reading his books (especially if you can get your employer to pay for it). He's a great speaker and you get all the books as part of the course. I wish all the makers of charting libraries, toolkits, and data analysis software were more familiar with his work. It would save us from some truly awful junk.
One area where I disagree with him frequently is when he strays from data visualization into user interface design. In general, I find his user interface preferences result in UI's that are too cluttered. One of his main rules is that data presentations should be very dense. However, I disagree that this approach works as well for user interfaces as it does when visualizing data. If you look at his web site (http://www.edwardtufte.com/) you can see his UI philosophy on display. I find Don Norman to be much better in this area than Tufte.
I would add that his one day course is a great way to get started reading his books (especially if you can get your employer to pay for it). He's a great speaker and you get all the books as part of the course. I wish all the makers of charting libraries, toolkits, and data analysis software were more familiar with his work. It would save us from some truly awful junk.
One area where I disagree with him frequently is when he strays from data visualization into user interface design. In general, I find his user interface preferences result in UI's that are too cluttered. One of his main rules is that data presentations should be very dense. However, I disagree that this approach works as well for user interfaces as it does when visualizing data. If you look at his web site (http://www.edwardtufte.com/) you can see his UI philosophy on display. I find Don Norman to be much better in this area than Tufte.