Some of my books are sold with a free price guide giving values for the objects photographed and which may also give ‘errata’ up-to-date information discovered since the book was published. A copy is put inside the back cover of every copy sold. If you have lost your copy, or want to check that you have the most up-to-date version, you can download the latest version as a .pdf file here.

If you have a book that is not listed here, no price guide or errata sheet was produced for it, and/or the book is out of print so there is no updated sheet.