Of all of the design books that I have read (which are a few), Tufte's are the best. I love his analysis of display, presentation and layout. I do not know when I first read a Tufte book, but I think his works have had a more profound effect on my skills, rather my application of those skills, than any other author or class I have ever taken.
As I have been posting my Reading to this blog I took it for granted that everyone has read and enjoyed Tufte books. Then, one day, it dawned on me that I should stop assuming that Tufte is a household name (though I have been surprised the contexts in which I have heard his name) and share my readings of his works too. I have prepared several Reading posts about his books.