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Publication Order of Non-Fiction Books
| A Lion’s Tale | (2007) | Hardcover  Paperback  Kindle |
| Undisputed | (2011) | Hardcover  Paperback  Kindle |
| The Best in the World | (2014) | Hardcover  Paperback  Kindle |
| No Is a Four-Letter Word | (2017) | Hardcover  Paperback  Kindle |