Have just found (and bought) 'The history of photography' by Helmut & Alison Gernsheim. Absolutely fabulous! It covers 'From the earliest use of camera obscura in 11th Century up to 1914'.
Slowly reading through it. Some interesting & fascinating information in it I didn't know happened or even existed.....
Has anybody else come across this book, and are there other books which cover from 1914 onwards?