The title is a balancing act, and deliberately so. Mind on one side, heart on the other; atheism paired with humanism rather than left to stand alone. That construction announces a project straight away, which is the business of separating the rejection of religious belief from the question of what should be put in its place.
Our catalogue files the work across politics and society and religion and spirituality at once, which is exactly right for the territory, and Lex Bayer reads it personally. Authors who narrate their own arguments make a small commitment in doing so: the case is theirs, and they are prepared to be heard making it rather than handing it to a professional voice.