How to add an image to your Blogger blog's header

There's an easy way to add an image to your blog's header. First of all, you must login to your Dashboard | Layout. In Page Elements section, please chose Edit from Header to setting.

A pop-up window will appear for you to chose an image From your computer or From the web to upload to your blog's header like the image below

There are also two options in Placement for your choice: Behind title and description or Instead of title and description. And the last option here will let you shrink your imge by clicking on Shrink to fit.