For many children, a collection of stories is a perfect book choice because it allows them to just get through one short story at a time, before bed or throughout another reading session. Story collections are also lots of fun because kids get to take in the writing styles and the creative ideas of a number of different authors. 

If you're looking for a humorous option for the young reader in your life, check out Pan Macmillan Australia's Laugh Your Head Off Again. It contains stories from some of the country's most popular children's authors, including Andy Griffiths, Sally Rippin, Morris Gleitzman, Jaclyn Moriarty, Alan Brough, and Frances Watts, and features bright illustrations by Andrea Innocent.

Here's a link to my full review of the book on Just Write for Kids.