An MP3 cover image, also known as album art or album cover, is a graphic image that represents the album or track associated with an MP3 file. The MP3 cover image is usually embedded in the MP3 file and displayed by MP3 players and software when the file is played. It serves as a visual representation of the audio content and can help identify the album or track. The MP3 cover image can be in various image formats, such as JPEG, PNG, or GIF.

You can search cover for mp3 on sites such as:

iTunes
Amazon
Google Images
Last. fm
Spotify
Deezer
MusicBrainz
Or you can use an MP3 cover editor like:

Adobe Photoshop
Canva
Fotor
BeFunky
You can also use tools like mp3Tag to add cover art to your MP3 files.