3D FlipBook - Embedding a portfolio/catalog/magazine/interview into another website

Hello there, I have customers who would like to embed the portfolios I created for them with your software. They want them to have it on their websites. What iframe code can I send them so they can do it without issues? This is very important. Please send me a few samples of how they can do it.

QUESTION: I would also like to change my email address, but I don't know how for future correspondence and login purposes. Please advice. My old email will be deleted next week, and I will not have access to it.