I did a lot worse than I expected, but I still got a B. In all honesty, though, if you miss a day, you miss a week, so don't fall behind. I did while taking two lab classes, which really sucks. Oh yeah, since there are a lot of try hards in the class waiting to suck that A, it's hard to get an A unless you dedicate your whole time.

He is a great professor. Tests based only on lecture materials. You only need the book for practice problems. His tests are pretty doable as long as you study!

Selling the Textbook and Solutions Manual for cheap. I got it brand new like three months ago and its the newest edition. Contact **********.

I fucking hated chemistry. For 20A I had Baugh - don't even get me started on that motherfucker, but let's just say I walked out of that class having retained almost nothing except how to bullshit my way through a south campus exam. For 20B, I had Peter Fucking Felker - He was boring and I never went to class. Whatever. For 20L, I had Pang - an improvement, most definitely, but still a bit of a drag to wake up for in the morning.
But then there's this fucking guy. I like him. This guy's great. His passion for chemistry will always resonate in my mind as the driving force for my wanting to learn it - and, I'm glad to say that I did. I learned more in Harran's class than I did in all of general chemistry, and a lot of it has to do with the fact that I actually WANTED to due to him. His lectures are very clear, though sometimes he has the tendency of going a bit too fast. He's very helpful in office hours, and is very open to helping students in need. His sense of humor has the ability to light up CS Young Hall, which I thought was pretty fucking impossible considering how much time I've spent contemplating suicide in those damn lecture halls due to every boring-as-shit lecturer I've encountered in them. His exams are hard, but what the flying fuck do you expect? His final was absolutely killer, but totally fair (still waiting on results!)
Though difficult, I suggest you take this class with Harran if you really want to gain an appreciation for chemistry, which I'm glad to say that I now have.

I don't write reviews on bruinwalk. But I shall make an exception for professor Harran's class. His lectures ares very interesting and his tests are fair. I would recommend attending his lectures (although I quite often didn't). He adds perspective to seemingly banal aspects of organic chemistry. He will often relate what you'd think as elementary organic reactions to something that happens in real life and will make you realize that what you are learning is not just some practically useless fundamental organic chemistry, but something of profound practical value. He is funny too, and I enjoyed talking to him, in general. I got by just fine by studying directly from the textbook, but I don't think that was the case for everybody. The only thing about this class that I didn't like was my TA (and the fact that Prof Harran gives quizzes in some discussion sections as extra credit to jump up your grade higher if you have a borderline grade- bear in mind that doing poorly on the tests has NO negative impact on your score at all)
Take this class.

If anyone is looking to buy the 30A-30C book for cheap, I'm selling my 5th edition I used. Email me at ************* if interested.

I took this class during the intensive summer session. I love Prof. Harran! He's super passionate about his field and often spices up the course content with applications and stories from his research or the real world. He's very knowledgeable as well, and he always breaks things down very clearly. His quizzes/tests are not super difficult, as they're based on the content of the lecturers. However, you have to practise a lot, as they do extend the skills and knowledge needed considerably.

If anyone is looking to SELL any of organic chemistry 30A's course material such as the book, notes, midterms final and ... Please email me at ************* thanks