While many parents are happy to follow official recommendations about vaccination, others avoid any vaccination for their children. This little guide will help parents come to their own informed decision based on clear information. It explains the different danger levels of various diseases, which are sometimes related to age. It also informs readers about the way different vaccinations work, and explores their benefits as well as potential risks. This ebook is based on the second print edition which was fully revised and updated with the latest guidelines and recommendations.