This book was awful.
Not one of the projects in this book could my son complete without help and most of the materials they say you can just find at scrap yards or free or pennies are not available and to buy them new would cost a small fortune.
It is based very much around those living in Australia or in hot climates which I do not.
A lot of projects I could not do myself nevermind expect my children to do.
They have a page or two on making your own butter by putting it in a bottle and shaking it until it turns into butter. I have been making my own butter for many years and I can tell you that what is in that bottle is not butter.
I wouldn't even re-sell this book, it has gone in the bin.