How to master the most profitable marketing channel on the internet

5-day crash course

What’s the most profitable marketing channel in 2025?

Email!

Why am I so confident?

Because it has a $36 return on investment for every $1 spent. That's a whopping 3600% ROI. Which blows other marketing platforms like social media straight outta the water (only $2.80 for every $1 spent.). And if you're serious about making more money on the internet, email marketing is one of the highest leverage skills you can learn.

Which is why we invited our friend Parker Worth to spend the next 5 days showing you how he’s used email to:

• Build a $20,000/month business

• Write high-converting emails in under 10 minutes

• Build a sustainable, no-hype business — one email at a time

Funny thing is, he only figured all this out because he had no other option.

Back in 2020, Parker lost everything.

His real estate business collapsed. One tenant literally held his house hostage. He spent the next three years studying copy, building his list from scratch, and writing emails every single day (even when no one was reading them).

Then in July of 2023, he launched his first course to a list of 800 subscribers and made $18K in 5 days.

By 2024 he’d made $153,311.29—all from writing simple daily emails.

He’s learned a lot about what works (and what’s a waste of time).

So he turned all those lessons into a proven system for building, growing, and monetizing an email list from scratch. It’s the same system that helped him bounce back from losing everything and build a sustainable, profitable online business with 5,100 active subscribers and a steady monthly income.

This week, you’re getting a 5-day crash course version of that system.

Each day includes AI prompts he normally only gives to students in his full course.

Here’s what he’ll cover:

• Day 1: The psychology behind emails that get results (even when you're competing against billion-dollar companies for attention)

• Day 2: A 5-minute formula that transforms ordinary emails into persuasion powerhouses

• Day 3: The 7 subject line styles that consistently pull 40–60% open rates.

• Day 4: How to write short, sticky stories that lets you sell without selling (turning every story into an irresistible buying opportunity)

• Day 5: How to write CTAs that feel like a reward (not a “pitch”) and finally get people clicking your links.

Each day builds on the last.

And by the end, you’ll be able to write persuasive emails that grow your audience and sell your products / services without being offensive or manipulative.

Before you dive in this week, there’s one thing you’ll need:

A clear idea of who you’re writing to.

When you don’t know who’s on the other side of your email:

• It’s harder to know what to say.

• It’s harder to decide which examples to use.

• It’s harder to choose what problems to write about.

Imagine tossing a pink paper flyer off a 10-story building in Time Square, NYC.

You’ve got about a .001% chance (maybe less) of that piece of paper landing perfectly in the hands of someone who cares. But if you know you’re targeting 30-year-old guys wearing Nikes hoopin’ it up at Rucker Park in Harlem, and you walk up to the court and hand deliver a flyer that says: “Free open gym runs every Saturday. Sponsored by Nike. First 10 get a pair of Kyries.” That’s a layup (pun intended).

Bottom line:

Email is way easier when you know your target.

So let’s start there.

If you already know your ideal reader, great, you’re good to go. If not, you can revisit last week’s series on finding your Information Advantage…or just run the prompt below before tomorrow’s lesson hits your inbox.

Here’s the prompt:

Act like a email marketing coach. 

I want you to ask me 5 questions to help me define my ideal reader. 

Only ask me one question at a time.

Begin by asking me about my current audience 

(Hint: I may not have one yet.)

Then summarize who they are, what they want, and what email topics would be most useful to them.

Save the answer. It’ll make everything that follows easier—and 10x more effective.

Tomorrow, Parker will kick things off with the real reason most emails flop (and how to fix it in one sentence).

We hope you enjoy this series on email marketing from Parker.

Chat soon,

—Dickie & Cole

Co-Founders of Ship 30 For 30

Co-Founders of Premium Ghostwriting Academy

Co-Founders of Typeshare

Co-Founders of Write With AI

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P.S. You’ll get a ton of free value from Parker this week (no strings attached).

But if you like what he has to say and want to go deeper, we’ll include a link to his Email 365 course in each lesson.

He also put together a companion AI prompt library that he’s giving away free for Write With AI readers if you decide to grab the course. You’ll get a handful of those prompts over the next few days.

(Full transparency: I’m an affiliate, so if you do grab the course, I’ll earn a small commission. But I’d recommend it either way — especially for the prompt library alone. It’s that good.)