To gain some context, I would suggest reading the Legacy Code book by Michael Feathers or read about Kent Beck's 4 rules of simple design, or even read the Clea

To gain some context, I would suggest reading the Legacy Code book by Michael Feathers or read about Kent Beck's 4 rules of simple design, or even read the Clean Code book. I think the first thing to consider in doing a review is first look to see if the code is easy to read and understand. There is that number out there that states we read code ten times more than we write it.