use your photos to bring in traffic

There are 3 keys to making images SEO friendly.

Naming: Use your keywords in your image title. Use hyphens between words. This image is "baby-rabbit-in-grass.jpg", get it?
Title: This is for visually impaired viewers using screen readers and those who have dial up. It's the placeholder text for your image. This one is title="baby rabbit in grass", spaces are allowed. Keep it to less than 5 words.
Alt: Keywords! Use words that relate to the image and your post.  I added alt="using images for SEO" and we're done!

The instructions are for WordPress users, but it's pretty much the same in all blogging platforms.

Upload your image into WordPress, insert it into your post and click the Edit Image button.

Go to the Advanced Settings tab

Add your text to "Edit Alternate Text" and "Title"

Or just code it in from the HTML tab
<img title="images html code" src="site.com/images/wordpress/code-for-image.png" alt="images search engine optimization" />