This practical introductory guide explains what archaeoastronomy is and gives advice for the beginner in the subject about how to check the astronomy of a prehistoric site. * Contains evidence for archaeoastronomy from around the world * Explains the role of archaeologists * Gives a simple introduction to solar and lunar astronomy * Lists the key dates to visit ancient sites * Explains why alignments have slightly altered over the centuries * Emphasises the links with ancient sea-faring and navigation * Encourages readers to adopt their own site for further research