Billie B Brown has amassed a rather large following of fans, who will no doubt be familiar with her best friend, Jack. Now Jack has his very own series of books, starting with The Crazy Cousins, The Robot Blues, The Scary Solo and The Winning Goal.

In The Crazy Cousins, Jack is in a moochy mood. He’d much rather stay in his pyjamas and play with his Lego. But when his dad reminds him that his cousins are coming to play, Jack knows his dreams for a quiet day are over. Without even his best friend Billie by his side, what is Jack going to do?

The Hey Jack! series takes on a similar format to Billie B Brown: short, illustrated stories that won’t scare off beginner readers. And while these have been targeted mainly at boys, these are such fun there’s no reason they won’t appeal to everyone.

Holly Harper is a children’s bookseller at Readings Carlton where she organises the kids and Young Adult e-newsletters. She also writes books for younger readers under the name H.J. Harper. Find out more about her Star League series and other books here and follow her on twitter - @hj_harper.