There are many texts (in books, magazine articles and websites) outlining various methods and approaches to improving ones photography. By far on of the best I’ve come across this week is Twenty-One Ways to Improve Your Photographs. It’s concise and easy to understand and makes a lot of sense too – well worth taking a few minutes to read and a few weeks/months to put into practice!
This is a good list for beginners, but I agree with JB, it sounds like the Law of Photography… which doesn’t exist. So I will keep taking blurry photos with the subject in the middle and all with a telephoto lens. Put apart my dislike to top 10 and top 20 lists, there are some fair points and if you didn’t figure out yet that photography is more than getting a sharp and colorful image, it is worth a read.