# Personal Science Guide to the Microbiome

> A practical guide to understanding your microbiome through personal science — covering gut bacteria, 16S rRNA sequencing, self-experiments, and what the latest research means for your health. Written by Richard Sprague, based on 600+ personal microbiome samples collected over several years.

This online book introduces readers to the human microbiome from a personal science perspective. It covers the biology of gut bacteria, the technology behind 16S rRNA gene sequencing, hands-on self-experiments, and practical advice for interpreting your own microbiome test results. The author shares findings from years of near-daily sampling of his own gut, skin, nose, and mouth microbiomes, along with analysis of hundreds of samples from other people.

## Chapters

- [Introduction](https://psm.personalscience.com/): Overview of personal science and the microbiome book
- [Getting Started](https://psm.personalscience.com/intro.html): How to begin with personal science and microbiome self-testing
- [What is Personal Science?](https://psm.personalscience.com/downloads/What%20is%20Personal%20Science.html): The philosophy and practice of using the scientific method on yourself
- [The Science of the Microbiome](https://psm.personalscience.com/science.html): Introduction to microbiome biology — what microbes are and how they work
- [Microbes Everywhere](https://psm.personalscience.com/Science/microbesEverywhere.html): How ubiquitous and hardy microbes are, both in nature and on our bodies
- [Microbes and You](https://psm.personalscience.com/downloads/Microbes%20and%20You.html): The relationship between your genes, your microbiome, and genetic testing
- [Microbes In You](https://psm.personalscience.com/Science/microbes_in_you.html): Microbes and disease — from Pasteur's germ theory to modern understanding
- [Microbes and Health](https://psm.personalscience.com/Science/microbes-and-health.html): Links between microbiome and allergies, obesity, and hygiene
- [Methods](https://psm.personalscience.com/methods.html): How 16S rRNA gene sequencing works and how microbiome data is generated
- [Handling Microbiome Data](https://psm.personalscience.com/downloads/Handling%20microbiome%20data.html): Practical guide to interpreting microbiome test results and abundance data
- [Microbes to Watch](https://psm.personalscience.com/downloads/Microbes%20to%20Watch.html): Key bacterial species in the gut and what they do
- [My Experiments](https://psm.personalscience.com/Experiments.html): Results from 600+ self-experiments on diet, travel, and lifestyle effects
- [My Tests](https://psm.personalscience.com/myTests.html): Testing results from mouth, nose, skin, and gut microbiomes
- [Case Studies](https://psm.personalscience.com/CaseStudies.html): Real-world microbiome analysis from hundreds of people
- [DIY Microbiome Testing](https://psm.personalscience.com/downloads/DIY%20Microbiome%20Testing.html): Guide to consumer microbiome testing services and how to choose one
- [Beyond Bacteria](https://psm.personalscience.com/downloads/Beyond%20Bacteria.html): Viruses, fungi, and other non-bacterial microbes in the human microbiome
- [Microbes and Genes](https://psm.personalscience.com/downloads/Microbes%20and%20Genes.html): How your human genes affect which microbes you host
- [Recommended Books](https://psm.personalscience.com/Next/references-books.html): Ranked list of the best books about the microbiome
- [Academic Papers](https://psm.personalscience.com/Next/references-academic.html): Essential academic papers for understanding microbiome science
- [References](https://psm.personalscience.com/references.html): Full bibliography

## Optional

- [Appendix](https://psm.personalscience.com/Appendix.html): Additional content being incorporated into other chapters
- [Full content](https://psm.personalscience.com/llms-full.txt): Complete text of all chapters for detailed analysis