Email Marketing Skill for Claude Code
One-Shot Your Email Marketing.
The most comprehensive email marketing knowledge base ever compiled. 908 sources. 4,798 insights. 65,000 words. 57 curated email designs. Distilled into a Claude Code skill that turns your AI into an email marketing expert.
Installs the email marketing skill to your Claude Code project
What you get
Playbooks for 19 industries
Every vertical gets its own chapter with segment-specific tactics, benchmarks, and automation flows.
Built on insights from 44 leading practitioners
17 chapters. 4 appendices. Everything you need. Read it now »
Real results from 10 companies
See exactly how these companies turned email into a competitive advantage, with real numbers.
Download the complete Email Marketing Bible as PDF
Get the full 65,000-word guide as a PDF. Free. We'll email you when new chapters or major updates are published.
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Email design best practices from 57 real emails
Patterns distilled from studying the best email designs of 2026. From welcome sequences to cart abandonment, here is what actually works.
Mirror your product in the email
Figma's welcome email feels like opening the app. Headspace uses soft shapes and calm colours that match the meditation experience. Your email should feel like using your product, not reading about it.
Restraint beats decoration
Apple, Aesop, and Nike prove that white space is a design choice, not empty space. Stripe's receipt uses a 472px width (not the standard 600px) for better readability. Strip to essentials, then strip again.
Own a colour, own the inbox
Absolut's wall-to-wall electric blue is unmistakable at scan speed. Pangaia draws earth tones from its materials. Collaborative Fund uses crumpled paper textures with bold red and yellow. Pick a palette and commit.
Voice matters more than visuals
theSkimm grew to 3.5M+ subscribers on voice alone. Liquid Death promises to "brainwash" subscribers. Superhuman's plain-text onboarding outperforms polished HTML. The strongest emails sound like a person, not a brand.
Turn transactions into brand moments
Webflow adds video tutorials to verification emails (the highest-opened emails you send). Haoma weaves tree-planting into order confirmations. Omsom makes every transactional email look different. Stop wasting guaranteed opens on bare-minimum templates.
Personalise with unexpected data
Lyka uses the pet's name, not the owner's. Beardbrand tells lapsed users their beard grew 1.5 inches. Blizzard writes in-character from a game NPC. Resy built a "Spotify Wrapped" for dining. The best personalisation goes beyond first names.
Scarcity and mystery drive clicks
Snif leads with "SOLD OUT" as the hero. Brooklinen uses a mystery-unwrapping GIF. Chubbies blurs unreleased products. Nike's deliberately sparse layout builds curiosity. What you leave out can be more powerful than what you put in.
Cart abandonment is a conversation
Tuft & Needle sends three emails addressing three different objections. Ugmonk sends a personal note from the founder asking for feedback. Liquor Loot opens with "Your cart is sobering up." Treat abandonment as dialogue, not a reminder.
Curated from studying emails by brands like Apple, Stripe, Patagonia, Glossier, and Dior. Informed by the work of email design practitioners including Ted Goas (Stack Overflow, Canva) and Remi Parmentier (HTeuMeuLeu), whose contributions to email development have shaped how the industry thinks about design.
About the Email Marketing Bible
The Email Marketing Bible is the most comprehensive email marketing guide available. V2, published April 2026. It was built by crawling 908 sources: industry reports from Litmus, Klaviyo, HubSpot, and Salesforce; practitioner blogs; academic research; platform documentation; and thousands of community discussions from Reddit, Shopify forums, and X.
V2 adds a curated collection of 57 best email designs of 2026 with structured design notes on why each email works and what to steal. Every claim is backed by data. Every recommendation has been tested by practitioners. The guide covers everything from list building to deliverability to cold email infrastructure, with specific playbooks for 19 industries.
The guide is open source and free. The Claude Code skill distils the full 65,000 words into a structured knowledge base that Claude can reference in real time when helping you with email strategy, copywriting, automation flows, or deliverability troubleshooting.
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Full stack email (transactional, campaigns, automations) controlled entirely from your AI. No dashboard, no drag-and-drop. Built by George Hartley (SmartrMail, 12K customers, 6B emails, acquired 2022).
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