Reaching the levels of JK Rowling is something only a select few can ever do. But then again, when she started out she might have wondered if she could ever be as popular as Dahl or Milne.

Originally seen as a genre for children and teenagers, graphic narratives have grown in sophistication and popularity in recent decades, and many tackle serious issues.

Lookbooks are most commonly used by fashion designers, but you will find examples for anything from bespoke kitchens to flat pack furniture.

Here are some of the reasons some trading cards build in value and others can be bought for less than a penny.