Think of split testing (or AB testing) like a deathmatch for ideas. It’s the best tool we have for figuring out what works and what doesn’t. When you run a split test, two or more versions of...

Consider the moment before your supporter decides whether to open your email. They must sacrifice something in order to give you their attention. Either, they’ll need to delay the thing they were about to do next, or...

The curse of knowledge is a cognitive bias that leads us to overestimate the knowledge of our audience. If you allow this curse to infect your writing, you may unwittingly leave supporters feeling confused an alienated. To...

Whether your call to action (CTA) is a button or a link, don’t get too clever. Speak directly to your supporter and tell them exactly what you want them to do. In our tests, this always increases...

What’s the magic number of emails you need to send to maximize supporter engagement and minimize fatigue?The answer is “five”. Kidding. It would be nice if it were that simple. But your ideal email frequency is unique...

Take your time. In the pursuit of saying more with less, I’ll admit—not every big idea can be reduced to a snappy soundbite. Sometimes there really is a lot to say. Still, there are better options than trying...

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