I took Jeff's senior level Algorithms class at UIUC back in 2002. His lecture notes are really high quality and presented in a very engaging style. Definitely worth checking out!<p>He also gave some very difficult homework problems. UIUC lore has one student noping out in a pretty amusing way: <a href="http://jeffe.cs.illinois.edu/teaching/pikachu.html" rel="nofollow">http://jeffe.cs.illinois.edu/teaching/pikachu.html</a>
I'm in his class right now. He's a great lecturer as well as writer. If you are interested in following along, the algorithms portion of the course is about to start. He makes his video lectures and course materials publicly available: <a href="http://courses.engr.illinois.edu/cs374/sp2018/A/schedule.html" rel="nofollow">http://courses.engr.illinois.edu/cs374/sp2018/A/schedule.htm...</a>
I have his notes printed as a spiral-bound book sitting on my desk at work. This course is fantastic and the notes are great as reference material, or even just as something fun to read.