I love this book. I had it as a child in the 70s and was delighted to see it was still in circulation. The images and text make it accessible across a range of ages and the 'spy projects' in it are great fun and very engaging for kids. Who doesn't want to know how to hide a secret message in code? Dressing up, codes, invisible ink - a huge range of illustrated projects, both indoor and outdoor, for a range of ages. My niece and nephew had just as much fun with it this year as I did 35 years ago!