Daddy's Tips for Better Photography
Know Basic Principles of Photography - shutter speed, lens aperature, "film" speed, exposure, focus, backlighting, flash distance - and how each affects picture.
Beware
If the light is behind them (in front of a window) or on a sunny day under a tree with shadows and sun moving about their face.
Solution: In both cases, use the flash to brighten the faces.
People Pictures
Get close, or use the zoom. Fill the picture with their face.
Ask them to do something funny, or make a funny face
Blur the background (large lens opening needed)
Make sure the background is plain so it doesn't distract from the person.
Landscape Pictures
Take a look at the pictures in National Geographic Magazine. Pictures don't get better than these!
Use a small lens opening so you can get objects close to you and far away from you in focus
Move around - try several angles
I learned about photography from Kodak's Guide to 35 mm Photography. It's still in my library.
On-Line Guides to Taking Better Photographs
weschan.com
TravelPhoto.net Guide
idigitalphoto.com
BBC Advanced Photography Tips