You Only Live Once is a humorous, relatable and enjoyable read that is definitely something that a fan of the Geek Girl books would enjoy. The character of Gracie Dart is interesting, vibrant and enticing. I found myself wanting to find out more about her from the moment I read the first page. A lot of this is down to the fantastic way that her character is written by author Jess Vallance, who has such a fun way of writing, it just sucks you in and it's so easy-following. The chapters are short which also meant I flew through this book, despite it being almost four-hundred pages because it was very easy to say to yourself "Oh, just one more chapter." I can't wait to see what is coming next for Gracie, I'm so glad that this is a series.