- 2008: _Warman's Coins &Currency Field Guide_, Krause. ISBN 978-0-89689-575-5
- 2010: _Warman's Coins &Currency Field Guide_, 2:a. upplaga , Krause Publikation ISBN 978-1-4402-1985-0
- 2017: _Standard Catalog of United States Paper Money,_ 39:e upplagan, med William Brandimore III, Neil Shafer., Krause Publication. ISBN 978-1-4402-4819-6
- 2018: _Warman's Civil War Collectibles Field Guide_, med Bill Benke, Krause Publications. ISBN 978-1-4402-4700-7
- 2019: _US papperspengarfel (röd bok)_ med Neil S Shafer , Jeff Ambio, Krause Publications, ISBN 978-1-4402-5492-0
- 2020: _Warman's World Paper Money Field Guide,_ Krause Publications. ISBN 978-1-4402-5935-2
- 2020: _Black Friday:The Untold Story of the Most Shocking Epidemic of World War I_, St. Matin's Press ISBN 978-1-250-25256-0,
- 2021: _Warman's Firearms Field Guide,_ Krause Publications. ISBN 978-1-4402-1927-0 med Robert G. Segel och Robert Campbell II
Fiction
- 2022: Bloodlines:a post-apokalyptisk thriller_ serie med tre böcker, John Meikle Publications
* Bok 1:_Ashes of America . ISBN 979-8-8372-8342-2
>*_Bok 2:_Shadows of Oblivion_*. ISBN 979-8-8372-0270-0
>*_Bok 3:_Ödets viskningar_*. ISBN 979-8-8372-6920-1