As I said in a comment to a previous review, according to the book, nearly half the alphabet doesn't join. This goes totally against the teaching my daughter receives at school, and pretty much renders the book useless. The only use the book can serve is as a template which you then modify, if you really are going to use it to practice what is taught at school for Key Stage 1.
The book also introduces concepts of the first join to the sixth join without any explanation of the differences, and then has worked examples where many of the letters do not join. All in all, I think this book is a poor effort and I would advise people to look elsewhere.