The title tags are equally important for both , Websites and Blogs. Even though you create a free blog, its is beneficial to create a SEO friendly title tag to get your blog in the top search results.
- Log into your Blogger
- Go to Template option
- Click on Edit HTML
- This will give you three options, choose “proceed” option
- You will see one title tag with some html code
- Change the title, with the one you want to give to your blog
- Click on “save template” option in the bottom
- Now view your Blog, you can see your Title in the Title bar.
If you want to learn more about SEO then refer the mentioned book , named "SEO Made Simple" by Mr. Michale H. Fleischner. It gives information about On page optimization, Off page optimization, Blogging, Article submission and much more.