Rather than any specific book recommendations, I'll share what proved to be a generally good learning experience for me. First, read several books about the technical, mechanical aspects of taking well exposed, well focused photos in various situations. Practice with your equipment so you know it very well. Second, read several books on composition and lighting, especially in your chosen area, such as landscapes. Practice the techniques described in the books. Even if you want to break the rules and develop your own style, knowing the classic guidelines and techniques will help you achieve the results that you desire. For example, capturing a three dimensional look in a two dimensional print is a skill that has to be developed. Knowing the classic guidelines and techniques will give you an enormous head start rather than just trial and error. Third, closely examine and study as many books of photographs, and as many prints in galleries and museums, as you can, especially those in your chosen area. Learn how the pros make their photographs and why they compose their photograhps as they do. Note the different styles, and what you like and don't like about each style and each photograph. This third step will really help you put the things you learn in the first two steps into action and results. You can also view countless photos on web sites, but seek out the web sites of real top notch pros. There is a huge amount of poor or downright bad stuff on the web. In any event, viewing photos on the web, at least for me, is far inferior to looking at high quality books of photographs and orders of magnatude inferior to looking at actual exhibition quality prints in a reputable gallery or museum. For books, public and university libraries can be a great source, especially if you travel much, since most libraries tend to house books with photographs of their region. In any event, view as many great photos in your chosen area as feasible. My last piece of advice, but not book related, is to shoot digital or slides, not negative film, as you learn. You can't really see exactly what you are doing with negative film since the printing process has such an enormous affect on what you actually see. I'm not saying that there is anything wrong with negative film, just that it's not well suited to learning.
