 Jeanine Diller (2016) points out that, just as most theists have a particular concept of God in mind when they assert that God exists, most atheists have a particular concept of God in mind when they assert that God does not exist. Indeed, many atheists are only vaguely aware of the variety of concepts of God that there are. For example, there are the Gods of classical and neo-classical theism: the Anselmian God, for instance, or, more modestly, the all-powerful, all-knowing, and perfectly good creator-God that receives so much attention in contemporary philosophy of religion. There are also the Gods of specific Western theistic religions like Christianity, Islam, Judaism, and Sikhism, which may or may not be best understood as classical or neo-classical Gods. There are also panentheistic and process theistic Gods, as well as a variety of other God-concepts, both of Western and non-Western origin, that are largely ignored by even the most well-informed atheists. (Philosophically sophisticated theists, for their part, often act as if refuting naturalism establishes the existence of the particular sort of God in which they believe.) Diller distinguishes local atheism, which denies the existence of one sort of God, from global atheism, which is the proposition that there are no Gods of any sort—that all legitimate concepts of God lack instances.