The Parts Nobody Writes About
Delivery chains that cannot be bypassed, refunds on rails you cannot reverse, disputes, and the claims that get stores in trouble. One book, 26,064 words.
9 chapters + appendix · 26,064 words · 130 printed pages · 30-day refund
Why Most 'Sell Digital Products' Advice Is Useless
It stops at the marketing
Almost everything written about selling digital products ends at traffic and copy. The parts that actually cost you money come after the sale: a download link anyone can guess, a refund clause you cannot honour, a dispute you lose because you kept no delivery log.
The examples are invented
This book's case material is one real store audit, told in first person: a 1,078-byte shell zip on sale at $9.99–$49.99, a download endpoint that authenticated and then redirected to a public file, five stores sharing one key-value namespace, a signing key with a hardcoded fallback, a recycled tunnel script on the checkout page. No invented statistics, no invented testimonials.
Nothing you can act on today
Every chapter ends in something executable: a broken code sample next to the fixed one, a table of failure modes, a smoke test, or a checklist item with the command that proves it. The appendix is 20 complete documents with placeholders you fill in.
Read it once. Run the checklist before every launch.
26,064 words of prose — the ~80 code and template blocks are on top of that number, not inside it. Markdown for reading anywhere, plus one self-contained HTML file that opens offline and prints to 130 pages.
The Nine Chapters
1 — What You Are Selling
Turning a sales page into a promise inventory: counting units honestly, writing a product manifest, and separating features from obligations you will have to keep.
2 — The Delivery Chain
Eight links from payment to file. The redirect-to-a-public-file bypass with the broken and fixed code side by side, HMAC signed links, constant-time comparison, key rotation, idempotent order verification, a 9-row failure table and a 30-line smoke test.
3 — Multi-Store Isolation
What goes wrong when several stores share one key-value namespace: product overwrite and cross-store redemption. Brand-prefixed keys, a threat model, a cross-store test matrix and a migration procedure.
4 & 5 — Refunds, Disputes and Chargebacks
Refund clauses with a named executor, window and tool; reversible rails versus crypto, including the same-coin-minus-network-fee clause. Then the dispute vocabulary, a full digital-goods evidence packet, a delivery-log schema, two response letters and a 24-hour runbook.
6, 7 & 8 — Claims, Scripts and Pricing
A line-by-line audit of fabricated copy with publishable replacements and an accurate description of FTC 16 CFR 255 and 465. Then checkout-page script risk, env-gated injection, CSP with a report-only rollout and SRI. Then tiers as fulfilment promises and above-the-button disclosure.
9 & Appendix A — Checklists and Templates
A 45-item pre-launch gate in 7 groups, every item binary with the command and the evidence it produces; a 12-item weekly check with minute costs; four incident runbooks. Appendix A is 20 complete copy-paste documents.
See the full chapter list before you buy
Nine chapters, an appendix of 20 templates, 26,064 words. One payment, no subscription, no update treadmill.
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