Feuerbach is one of my favorite of the minor philosophers. His work is engaging, insightful and relatively easy to read. He is also a key bridge in understanding modern philosophy and theology. I’ve included here a longer excerpt on 'religion as projection, as well as a good introductory article by Van Harvey a link to his famous Essence of Christianity and a book of selected readings.
God as Projection
Ludwig Feuerbach (1804 – 1872) was best known for his book The Essence of Christianity, which provided powerful a critique of Christianity which strongly influenced generations of later thinkers, including both Karl Marx and Friedrich Engels.
His philosophical writings had a deep understanding and appreciation of theology. Indeed he saw himself as a friend of theology who was merely helping to reveal the materialist truth of its message. His thought was influential in the development of historical materialism. He is often recognized as a bridge between Hegel and Marx.
The following excerpts touch on his most important and lasting contribution to the critique of religion: the idea of God as a projection of the human essence.