Case studies for DTC brands, Amazon sellers, and the agencies that serve them.

I write the kind of case study your sales team actually uses: with concrete numbers, a real story, and a customer voice that doesn’t sound like marketing nonsense.
Most case studies are bad because the work can be a bit like herding cats. (No offense to case studies. Or cats.) Coordinating the customer, running the interview, pulling out specific numbers, routing approvals, and writing something that doesn’t read like a brochure… it’s the kind of work that gets pushed to next quarter and stays there. Or it gets handed to a junior writer and comes back sounding generic. But I take the whole thing off your plate. You hand me a customer, and I deliver a finished case study in three to four weeks.
Since 2016 I have done content, blog strategy, and case studies for e-commerce agencies whose clients run $50M+ on Amazon. I’m also former Amazon. So I know how DTC and marketplace businesses work, which means you’re not paying me (or your client) to learn the space on someone’s dime.
Selected Work

The Breakthrough That Never Was
Reverse case study — Azama Brands
A smart-home brand fired their Amazon agency at month 11, just as all the strategic work began to pay off. This piece walks through the original engagement, the decision to leave, and a three-month follow-up showing exactly what happened next. Written to demonstrate the cost of abandoning a working strategy without naming the client.
Best fit for: situations where the win isn’t a clean before-and-after, and the case study needs to make a strategic argument or carry analytical weight.
How FilterBaby Got It Right on Amazon
Launch case study — Azama Brands
FilterBaby was selling well on Facebook but had no Amazon presence. They were leaving real money on the table from shoppers clicking their ads, then going to Amazon to research. This case study covers the strategy, the timing, and the numbers: $200K in the first holiday season, conversion rates rising from 2.06% to 3.68%, ROAS from 1.64 to 2.96.
Best fit for: launch stories, channel-expansion wins, and case studies that double as top-of-funnel blog content.


Why CPA Matters More Than ROAS
Argument-driven case study — Troveres
A CPG brand launching crunchy chickpea snacks into the U.S. market. This was a product Americans had never heard of, in a category they didn’t shop. The case study uses the Festive Chickpeas launch to make a broader argument about why Cost Per Acquisition is the right metric for new launches, not Return on Ad Spend.
Best fit for: case studies that need to anchor a thought-leadership argument or sales narrative around a specific customer.
How I Work
Standard case study — $2,500. One customer interview, 800–1,200 words, two revision rounds, delivered in Google Docs. Three to four week turnaround once the customer is scheduled.
Extended case study — $3,500. Two interviews (e.g., buyer and end user), 1,500–2,000 words, custom data callouts, two revision rounds.
Retainer — from $6,000/month. Three or more case studies per month, prioritized scheduling, light additional content work as needed. Most clients start with one or two paid pilots before moving to retainer.
How I run a project. Pre-interview prep doc sent to the customer 48 hours ahead. Recorded interview, transcript shared with you within 24 hours. First draft within 10 business days of the interview. Two revision rounds included. Direct communication with your customer is white-glove — they never know I’m a contractor unless you want them to.
White-label work for agencies is welcome at the same rates. Payment is 50% upfront, 50% on delivery.
Get in Touch
Easiest first step is a 20-minute intro call. Email me with what you’re working on and I’ll send some times. emily.murray.copywriter@gmail.com