best Fly Fishing Books

The flies hatch in which month in the United Kingdom?
I am a beginner and want to know what is the best magazine or website or book, etc. to match the hatch in the UK? I mainly fish tanks, but I am more and more acute for freshwater fish as well. I have a good selection of flies, I think, but do not know which models are more successful in every month and I think it would improve my fishing if I did. I can turn the tide around in ten to fifteen minutes until you find ones that are taken on this special day and I manage very well this way. The recommendations and suggestions from the experience more fishermen out there would be much appreciated!
First I must say, no disrespect, but learning about life stolen streams and other water and entomology of each insect has a life to learn, there are books, but if I was to enter each insect, a fly can th eb used to meet us here a few days, there are simple precautions that can help, but the key is to talk with fishermen in which fish for example, Hatch could be a fly in the night in a river, but because of the riparian vegetation may be a half day in another. This is the best explanation I have seen so far in http://www.orvis.co.uk/store/product_choice.asp?pf_id=03Q3&dir_id=441&group_id=9066&cat_id=9067&subcat_id=5438 book form
Travel Guide New Mexico tm, Taylor Streit Fly Fishing Northern New Mexico
