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Publication Order of Grk Books
| A Dog Called Grk | (2005) | Hardcover  Paperback  Kindle |
| Grk and the Pelotti Gang | (2006) | Hardcover  Paperback  Kindle |
| Grk and the Hot Dog Trail | (2006) | Hardcover  Paperback  Kindle |
| Grk Operation Tortoise | (2007) | Hardcover  Paperback  Kindle |
| Grk Smells a Rat | (2008) | Hardcover  Paperback  Kindle |
| Grk Takes Revenge | (2009) | Hardcover  Paperback  Kindle |
| Grk Down Under | (2010) | Hardcover  Paperback  Kindle |
| Grk and the Phoney Macaroni | (2012) | Hardcover  Paperback  Kindle |
Publication Order of Non-Fiction Books
| The Timetraveller’s Guide to Saxon and Viking London | (2004) | Hardcover  Paperback  Kindle |
| The Timetraveller’s Guide to Shakespeare’s London | (2004) | Hardcover  Paperback  Kindle |
| The Duke of Wellington | (2006) | Hardcover  Paperback  Kindle |