I mean, folks are going to recommend what they know - which is going to coincide with their beliefs and lifeways. This shouldn't be surprising to you. If you wanted something different then what you need to do is visit a university library and discuss your pursuit with a collections specialist.lol someone recommends atheist books, someone recommends theistic books. Each recommending according to their beliefs. In the meantime we ignore the fact, nature, and our relationship with it is completely independent of our beliefs.