# The Ultimate Guide for Surviving Doomsday > The Ultimate Guide for Surviving Doomsday: How to Prep to Thrive During End-of-the-World Scenarios, by Michael Byrd. A practical preparedness book for when the power, water, food supply and communications fail. This site offers a free sample chapter, free preparedness calculators, and email release updates. The book has not been released yet. - Author: Michael Byrd - ISBN: 979-8-234-19276-9 - Tagline: Thrive if you can. Survive if you must. ## Pages - [Home](https://survivingdoomsdaybook.com/): About the book, the free tools, the author, FAQ and release signup. - [Free sample chapter, The Psychology of Survival (PDF)](https://survivingdoomsdaybook.com/assets/The-Psychology-of-Survival-Sample-Chapter.pdf): Seven original book pages. ## Free tools on the home page - [Solar and battery sizing](https://survivingdoomsdaybook.com/#tools): Array watts and battery kWh from load, hours, sun hours and days of autonomy. Assumes 80% system efficiency, a 20% margin, 90% inverter efficiency and 400 W panels. - [Water reserve and treatment](https://survivingdoomsdaybook.com/#tools): Gallons to store (1 or 3 gallons per person per day) and bleach drops to disinfect it. - [Emergency ration planner](https://survivingdoomsdaybook.com/#tools): Total calories for a household and duration, with a planning reserve. - [Text to Morse code](https://survivingdoomsdaybook.com/#tools): International Morse encoder with audio playback. ## About the author Michael Byrd is a retired engineer and lifelong prepper in the Rocky Mountains: Eagle Scout, thirty-five-year ham radio operator, beekeeper, builder, inventor and adjunct professor. He wired his own shop after reading the electrical code twice, and still got the panel wrong. He miscalculated his off-grid solar a dozen times before he got it right. ## FAQ ### When does The Ultimate Guide for Surviving Doomsday come out? The release date has not been announced yet. Join the release list on this page and you will get an email when the book is available. ### What does the book cover? Practical preparedness for pandemics, invasion, terrorism, civil unrest, famine, nuclear war, EMPs and dirty bombs. It includes a dated thirty-day plan with workbook pages, the math for water, food and solar power, sixty-six drawn plates, twenty-five dinner-table drills and ten hard dilemmas. ### Who is Michael Byrd? Michael Byrd is a retired engineer and lifelong prepper in the Rocky Mountains: Eagle Scout, thirty-five-year ham radio operator, beekeeper, builder, inventor and adjunct professor. He wired his own shop after reading the electrical code twice, and still got the panel wrong. He miscalculated his off-grid solar a dozen times before he got it right. ### How much emergency water should I store per person? Plan on at least one gallon per person per day for drinking and basic hygiene. Three gallons per person per day is a more practical reserve. At the one-gallon minimum, a family of four needs 56 gallons for two weeks. ### How much bleach does it take to disinfect a gallon of water? Use plain, unscented bleach. For clear water, add 8 drops per gallon of 6% bleach or 6 drops per gallon of 8.25% bleach, and double the dose for cloudy or cold water. Stir, wait 30 minutes, and check for a slight chlorine smell. If there is none, repeat the dose and wait 15 more minutes. Bleach does not remove chemical or radioactive contamination. ### Can I read part of the book for free? Yes. The chapter "The Psychology of Survival" is free to read on this site as seven original book pages, and you can download it as a PDF.