How to Add Navigation Bar in Blogger

Step-1:

Go to Your Blog

Click on Layout

Step-2:

Click on Add a Gadget

Step-3:

Now find Here Pages by Scrolling Down.

Step-4:

Click on Pages, Now Select the pages which you want to show.

Step-5:

You can also show that which is not available in your Blog.
Or You can show External Links. Click on Add a External Links.

Step-6:

Now Give it to a Title and a URL.