This ebook aims to provide for the lay reader a readily comprehensible and memorable summary of twelve reasons to believe in the existence of God. Drawing on and summarising a host of arguments over time, this booklet brings them together, lucidly and in order, equipping the reader with a reasoned basis for belief in God. Answering the crucial question "Does god exist?' has immediate and practical consequences in the way we live our lives. Further reading and exploration is provided.