In one sentence, describe what the following article is about:

If you don't know how to do this, consult the instructions for your camera, phone, or tablet for details. Click on "My Shutterfly" at the top of the screen. This will take you to your personal Shutterfly page. Once you've logged into your account, most of Shutterfly's functions can be accessed from your "My Shutterfly" page. Once you've opened your Shutterfly page, click the "Add pictures" button. This will take you to another screen that allows you to select the files you want to upload and create an album to put them in. Click the "Choose files" button. This will allow you to select pictures saved on your computer that you wish to upload. To upload several photographs at once, hold down the "CTRL" key on your keyboard as you click on the photos you want to upload. Then click "Open."  Shutterfly only accepts photographs in JPG or JPEG formats. If your photographs are saved as some other type of file, you will need to convert them.  If you need to convert your pictures to JPEG format, even the most basic graphic creation programs will allow you to do this. For example, in Microsoft Paint, just open the picture you need to convert, then choose "Save as" and select the JPEG format. This creates a new copy of your picture in the desired format. Once you've selected your images, enter a name for the album of photos you're about to upload in the bottom left-hand corner of the screen. Then click the "Start" button.  For example, if the pictures are from a trip to the Grand Canyon, you might call the album "Grand Canyon 2014." If you've already created an album and wish to upload your photos into it, select "upload to an existing album" and choose the appropriate album from the dropdown menu below. Once your pictures are done uploading, you can view them by clicking the "View pictures" button. You can also view them at any time by clicking on the "My Pictures" option at the top of the homepage. You can view your photos individually by clicking on them one at a time, or use the slideshow option to view them sequentially.

Summary:
Transfer your photos to your computer. Open your Shutterfly page. Prepare to upload your pictures. Select your pictures. Create an album and upload your pictures. View your pictures.