Book Brush offers options to create your own Amazon A+ content in the Custom Creator. Here's a short How-To video: Watch How To Create Amazon A+ Stacked Images Now!
We also get a lot of questions from authors on how to upload Amazon A+ content to your account once you've created the images. Here's a How-to video on uploading Amazon A+ content, too: Watch A Handy Guide to Uploading Amazon A+ Content to Your Account