6"x9" leather bound hard cover including: The First 164 pages of The Big Book with lined pages opposite text for note taking. Includes the original Foreword, The Doctor's Opinion and Dr. Bob's Story. Paragraph numbers along side the text for easy reference. Entire Original Manuscript (about) including the stories. Easy to read retyped version. Includes paragraph numbers corresponding to the modern text for easy comparison. Footnotes explaining historical and obscure references in the text. Footnotes documenting all 79 differences between the modern text and the original 1st printing text of the 1st 164 pages (about). Yes, believe it or not, the basic text has been changed 79 times since it was first published. Two place keeping ribbons. Special "lay flat" binding. About the 4th Edition: All the indexes we publish are for the 1st 164 pages (the main text). The text and page numbers are the same in both the 3rd edition and 4th edition of The Big Book. You can use any of our indexes with either edition.