[swanson]

I find that one of the causes for wildly different levels of code review (and value derived from them) is a lack of training. There is a real lack of materials for explaining how to do a code review, how to do deal with the human aspect of giving feedback, what is/is not valuable to talk about (arguing over tabs vs spaces should not happen in a code review). Most of my experiences have involved a trial-by-fire process - new engineers receive a few code reviews from more experienced people and that is your "training".

[KiwiCoder]

I agree - and your comment gives me an idea for a series of posts on this exact subject.

[swanson]

Great - would love to read :)

http://exercism.io/help/how-to-nitpick is a good resource as well.