Apart from fit (more details on that here), collar style is a major factor you must consider when choosing a dress shirt. One thing to take into account is your face shape – is it thin or broad, long or short? Certain collar styles will either emphasize or help to balance out those qualities, so choose wisely! Another aspect to think about is how casual or formal you intend to dress, and whether or not you’re going to wear a tie (plus, which tie knots will look best). Here’s a quick summary of the ‘rules’ you should follow when choosing your collar type.