An important aspect of photographic composition is texture. The texture of skin is important in portraits (if a portrait subject’s skin texture is too rough, you may need to add a softening filter or do work in Photoshop), while objects in photos may have textures that set the mood of the image.
Be aware of the direction of the light hitting subjects and how the quality of that light affects texture. Hard directional light (such as sunlight hitting a wall at an angle) will accentuate texture. Soft, diffused light minimizes shadows, which may be beneficial for some subjects and will minimize some textures.
Mix 'n match: Look for a mixture of textures to add interest to your photos. Camera: Canon Powershot SD1000 Digital Elph.
A good exercise you can do is to walk around your house or neighborhood and look for textures. Photograph them, filling the frame with one or more different kinds of textures. The next step is to bring this awareness to all of your photography, even when you’re not setting out to shoot textures.
Whatizzit? You can find unusual textures in everyday objects. Can you guess what this is? Why, it's a detail of my electric shaver, show with a macro lens at half life-size--of course! Camera: Canon D30 with 50mm Canon Macro lens.