Investigative guides
PrimeDigger Ebooks.
Investigations you can read cover to cover. $19 each.
The collection
Browse the ebooks.
The Energy Drink Bible
Caffeine, Celsius, Prime and the Can-Size Trick
What’s inside
A 68-page guide to what is really in the can: how much caffeine is too much, the can-size trick that hides a drink’s real strength, a 19-can label scorecard, what the Celsius studies and Prime lawsuits show, a chapter for parents of teens, and a 14-day plan to cut back — with 5 printable tools.
For: anyone who drinks energy drinks, and parents of teens who do. Related: healthy energy drinks scorecard, is Celsius bad for you?, is Prime healthy?
The Kitchen Truth Bible
Oils, Heavy Metals and Food Label Tricks
What’s inside
A 55-page guide to the oils, metals and labels in your kitchen: which oils to cook with, the truth about seed oils, how many avocado and olive oils failed university tests, heavy metals in protein powder, chocolate and rice, and a two-minute label routine — with 5 printable checklists.
For: anyone who cooks at home and is tired of conflicting food advice. Related: healthiest cooking oils, best oil to fry eggs, protein powder without lead.
The Women’s Strength Bible
Creatine, Protein and Muscle After 40
What’s inside
A 57-page, evidence-based guide for women over 40: what creatine really does (and doesn’t) after menopause, how much protein you need and when, and a simple two-day strength plan — with sample meal days, an FAQ and 4 printable trackers.
For: women in perimenopause, menopause and beyond who want to keep their strength. Related: creatine for menopause, best creatine for women, protein powder without lead.
The Hidden Surveillance Bible
How to Find Hidden Cameras, Trackers and Bugs
What’s inside
A 55-page, step-by-step guide to the 15-minute hotel and rental room sweep, finding AirTags and GPS trackers on your car and in your bag, stopping key fob relay theft, and checking your phone for stalkerware — plus exactly what to do if you find something. Includes 4 printable checklists.
For: travelers, renters, and anyone who thinks they might be watched or tracked. Related: finding hidden cameras, trackers on your car, Faraday bags.
The Wearable Scam Bible
What Your Fitness Tracker Isn’t Telling You
What’s inside
Fitness trackers promise accurate heart data, better sleep, and smarter training. This ebook looks at the gap between those promises and the evidence behind them — and at what happens to the health data your device collects once it leaves your wrist.
For: anyone who wears a tracker every day, or is about to buy one. Related: Fitbit Air review, sleep industry myths.
The Supplement Scam Bible
What the Label Won’t Tell You
What’s inside
Supplements don’t need FDA approval before they’re sold, and the labels show it. This ebook breaks down how dosage claims, “clinically proven” wording, and ingredient lists can mislead — and how to read a label for what it actually says.
For: anyone buying supplements based on what the bottle promises. Related: melatonin dosage, creatine for menopausal women.
The Remote Work Surveillance Bible
The Privacy Gaps Software Can’t Fix
What’s inside
A VPN and a password manager cover a lot, but not everything. This ebook covers the physical and network privacy gaps remote workers run into — VPN travel routers, Faraday bags, privacy screens, and more — and which fixes actually close them.
For: remote workers, frequent travelers, and anyone working from cafés, airports, or shared spaces. Related: VPN travel router flaw, Faraday bags, privacy screens.
The Online Predator Bible
What AI Made Easier to Fake
What’s inside
AI made voice cloning, deepfake video, and convincing fake profiles cheap and fast. This ebook covers how AI-driven scams work, how data brokers hand scammers the personal details they need, and how to lock down your privacy on dating apps.
For: anyone using dating apps, or anyone whose personal details are easy to find online. Related: AI romance scams, removing your info from data brokers, Bumble vs Hinge privacy.
Before you buy: checkout and payment are handled by Payhip, and you get your download link right after paying. Each ebook is for personal use. If your file doesn’t work, you received the wrong one, or you were charged twice, email contact@primedigger.com within 14 days and we’ll fix it or refund you. Full details are in our Terms of Use. Our ebooks are general information, not medical advice. See our Health Disclaimer.
PrimeDigger ebooks take one topic at a time — like fitness trackers, supplements, remote work privacy, and AI-driven scams — and ask what you’re not being told. Each one goes further than a blog post can.
How PrimeDigger Ebooks Are Researched
Every ebook starts where our articles do: with the fine print. We read the peer-reviewed studies, privacy policies, regulatory guidance, and product documentation behind each claim, then compare that against the marketing. Where the evidence is strong, we say so. Where it’s thin or missing, we say that too.
Not sure where to start?
Every ebook grows out of topics we’ve already covered for free. Read the articles first, then pick the ebook that matches the questions you still have.