The Revelation is undoubtedly one of the most important documents ever given to mankind. This is evident not only from the valuable information it contains but more importantly by the person who gave it. Although of particular relevance today, many find it hard to understand. With its unique perspective "A Door Opened in Heaven...." brings a fresh approach. Born out of the fulfilment of prophecy it draws upon both the Old and New Testament to plainly show what the Revelation teaches. Its uncanny insights and accessible style clearly demonstrate why Christ gave this most important Revelation.