Do you mean at school or to study? At school we use Antiquity 2 and two Pamela Bradley Books, one for Pompeii and the other for Ancient Egypt. Her Pompeii one is especially comprehensive. I studied from it for an exam and completely smashed it
For overall study, I prefer to make my own notes. There are many study guides for Ancient, but the amount of resources will vary depending on the popularity of the topics you are doing. Your school or local library should have them.