Do you happen to have a copy of this email or it something you found online? If you have a copy, you could check with Litmus Scope?
Otherwise, it looks like maybe they used one big image, which def isn't a great route.
Looks neat, though.
Whenever anyone asks me about my experience speaking at Litmus Live, I tell them the same thing: it's my favorite conference to speak at. It was also the first conference I spoke at. Between the incredibly supportive and amazing Litmus team and the wonderful (and so forgiving) audience, it's a really great conference to get started at if you're looking to speak at them or even if you just have something rad to share with the Litmus Live audience.
Now I'll actually answer the question asked.
We'd love to hear from previous speakers—how did you create your proposal and what's the one tip you'd give to anyone looking to submit a proposal this year?
I've spoken at Litmus twice. Both times it's because I'd worked on a thing that I was super proud of and had learned a lot from—and I wanted to share those learnings for other folks to do at their own jobs. When it comes to crafting a proposal, think about what's the one thing you'd like to share with other folks who work in email. Chances are we all want to hear it.
In terms of tips: yes, I reiterate what others are saying, the video helps a lot. No matter how well you can write out your proposal, it's always going to sound better—and give some insight into how you'll sound talking about it—in your own words in a video. I also echo what Kathryn said: thinking about takeaways helps narrow down topics.
And if you're wondering if something is a good topic idea, you can find some of us on Twitter and ask. We're friendly.