NG-National Geographic is renowned for taking the best pictures in the world.  It would then follow their advice in The Ultimate Field Guide to Photography would be an excellent choice for novices looking to take great pictures and understand the world of digital photography.  My 2 favorite tips; in the viewfinder divide your subject into a tic-tac-toe grid and place the center point of your picture along the crosslines-this is the place where the eye will naturally go and if your camera has a histogram-use it.  The NG Photo of the Day is highlighted in my Blogroll. Breathtaking!  LA Carlson