The Companion Bible is a study Bible by E.W Bullinger is the King James Authorized Version of 1611 with many footnotes and study material. It also has an extensive Appendix spanning 223 pages which covers 193 topics. The Companion Bible is probably the best Study Bible available to date. Charles Welch helped Bullinger finish this study bible. No other Bible has the kind of exhaustive information found in this Bible. This version listed is the leather bound bible.