When writing a book of facts do you have to ask permission from your source and/or give credit to the source?
Thank you for your question. The brief answer is this. If you get all your facts from one source, you had better get permission. However, if you gather your facts from a wide variety of resources and you only take a couple of facts from each source, then you don't need permission. Simply thank all the sources by mentioning them in your end notes and bibliography. Some facts are in the public domain, so if you take a lot of facts from an almanac, a dictionary, an atlas, etc., then you don't need permission. However, if you lift a whole section from the almanac, then you would need permission.
If you have any more questions, feel free to write back again.