Good Gun books on Kindle.

If you have a Kindle these are a good read, all out of print or expensive to find. Kindle app works great on Android and iPads or works fine on windows or a Mac if you don't mind reading on a laptop or computer

Bob Nichols on Double Action Shooting. HeadHunter recommendation only £7.40

www.amazon.co.uk/gp/product/B00G3MKX10/ref=kinw_myk_ro_title

The custom revolver by Hamilton Bowen (One of the best revolver smiths that ever lived) 

www.amazon.co.uk/gp/product/B009DUOWLQ/ref=kinw_myk_ro_title

The Book of the Pistol & Revolver, by Hugh Pollard - British firearms expert from the early part of the 1900's First World War survivor and went on to help the SOE source weapons in WW2

www.amazon.co.uk/gp/product/B00K8HDPQG/ref=kinw_myk_ro_title

Not rare but a good modern book on the current state of small arms

Infantry Small Arms of the 21st Century: Guns of the World's Armies  Leigh Neville

www.amazon.co.uk/gp/product/B0813SJYRN/ref=kinw_myk_ro_title