How to fix this formatting of text and image

I found out that when I upload small image in my blog it display in the left corner of the body then the text fall next to the image. Just like this:

IMAGE
paragraph….
paragraph….

I want to make something like this:

IMAGE paragraph…
paragraph….

Above, would be nicer if the text blurb can wrap around the embedded thumbnail image. That way, the article looks more compact and less choppy.

Thanks.