Another of the thematic trends for spring / summer 2011, punk carries on from last year to become less of a full blown trend and more one of influence - you'll see its elements impact upon a number of other spring 2011 trends. Which can be a danger: punk fashion is one trend you can't afford to get wrong. Read our guide to punk fashion for spring / summer 2011 to find out what it entails, what elements you should wear, and the looks you should avoid.