Bests & Worsts Reviews from Amazon

My husband and I are both web designers, so we were ordered this book as a Christmas gift for our daughter. Sadly we then discovered that some pages contain code that is not valid - tags being closed without opening, opening without later being closed, etc. After mentioning this to the author on their Facebook Page, they confirmed that was not a mistake, and that due to layout issues they were not always able to fit all the proper tags onto a page/spread. For a book that is supposed to introduce babies/children to the basics of HTML, we find that very disappointing, and therefore decided to return the book. Others may think this harsh, but would you want to introduce your child to a foreign language or math or geometry, or any other subject for that matter, using a book that has errors/omissions on the most basic level? We commend the author for their idea, but there must be some way to fit valid code into the layout!