Twitter header help？

On your Twitter profile, in addition to using any picture as your profile image, you can also add a picture as a header for your account. Since Twitter is considered to be an authentic and genuine social networking site where people always create their profiles with the correct names, it is recommended that you use an original image (or any royalty free picture) to place on the header of your Twitter profile.
The image that you want to place as the header for your Twitter account must be a specific size (height and width) so that it can fit in the available space. Twitter's recommended dimensions for header photo is 1500px in width X 500px in height.

Read more information about Twitter headers and other social media in amoyshare.com/photo-collage-maker-for-win/social-media-banner-guide.html