[Leica] Amazon.co.uk recommends "Leica Lens Compendium" and more

[matthew at hunt.tc (Matthew Hunt)]

Dear LUGgers of greater experience than me.  Amazon is recommending me some
Leica books because I bought Leica M: Advanced Photo School by Gunter
Osterloh (which helped me a lot).  What I wanted to ask you was whether you
had any thought on the following books.  Do older books on lenses still
apply when using the M8 (because of the crop factor, etc.)?  Also, I have
downloaded the Puts essay on Leica lenses from the Leica website and studied
that, would the books add much?  I could put them on my wish-list at Amazon
as my family are wanting recommendations.
________________________________________

Leica Lens Compendium by Erwin Puts 
_____________________________________

Leica M Compendium: The Handbook of the Leica M Systems (Hove Compendia) 
by Jonathan Eastland 
________________________________________

Leica: Witness to a Century by Alessandro Pasi 
________________________________________

Leica Lens Practice: Choosing and Using Leica Lenses by Dennis Laney 
________________________________________

Leica Pocket Book by Dennis Laney 
________________________________________

Leica Accessory Guide (Hove Collectors Books) by Dennis Laney 
________________________________________

Leica: The First 70 Years by Gianni Rogliatti 
________________________________________

Thanks, Matthew