First go to "My Publications".
Then click on the "little pen icon" to edit your magazine.
Scroll down to the section "Embed" and click on "Open Embed Options".
Then the "Embed Wizard" will open up.
Here you have the choice between several types of embeds.
Custom and Advanced
With these embeds, you can embed the complete magazine. The advanced embed offers more features and is meant for more expertised users. More Information here
Text link, Follow Button, Button and Cover embed
A simple text, a button or a magazine cover which can link directly to yumpu or in the fullscreen mode.
This embed can represent several magazines at once in a bookshelf. Your magazine collections serve as the source. More Information here
With this embed you can generate a video of a magazine for advertising purposes. More Information here
Learn more about the settings of all embed types here