This one is all about dry fly fishing – I bought mine second hand without a cover in a wee bookshop on Otago lane .
(the picture is an affiliate link to Amazon)
I see you can now buy it for the princely sum of 1p plus a couple of bucks postage. Good thing about books is you can read em’ on the toilet a lot easier than a laptop.
It covers pretty much everything you ever wanted to know about fishing with a dry fly – including leaders, lines, rods, rise forms etc.
I like it.