You clink glasses. You yawn when someone else does. You knock on wood. Nobody ever told you why, and the reasons you think you know are mostly wrong.
Every one of these has a tidy, satisfying, widely repeated explanation. Here is what happened when somebody actually checked.
There are fifty of these. About twenty of them end with the explanation you were taught quietly falling apart.
Four questions. Pick one and the book answers immediately. No email, nothing stored, nothing sent.
It runs from breakfast to three in the morning. Read it in order or open it anywhere, which is how most people will.

Clinking glasses, the fork that took six hundred years, salt and pepper and nothing else, three meals a day, fire on a cake, tipping, popcorn.

Your own voice, contagious yawning, crying, why you cannot tickle yourself, hiccups, goosebumps from music, sneezing at the sun, sighing, blushing.

Shaking hands, whispering in libraries, clapping, nobody smiling in old photographs, the weather, forgetting a name in four seconds, queues, lifts, laughing, standing on the right.

Knocking on wood, forgetting why you came in, the corridor, the lawn, the room nobody sits in, the photographs you will never look at again.

The mess of your keyboard, why clocks turn that way, why red means stop. Then: bless you, hello, OK, long goodbyes, um, swearing, baby talk.

Why the dark feels different, the thing sitting on your chest, waking at three, the phone, the song that will not leave, why you cannot remember being two, why the years keep getting shorter.
Set like a book, not like a blog post. A drawing for every entry, and the sources under each one.




Go and read the reviews of the ones already on the shelf. The same complaints come back every time: no sources, copied from the internet, charming stories that turn out to be invented, and no way to tell which is which.
That is the whole reason this book exists, and it is the one promise it makes:
One entry was researched, written, and then cut, because the only things backing it up were blogs quoting each other. It is not in the book. That is the standard.
Two to three pages each. This is the whole book.
“We spend our lives fairly certain we are sealed units. Then somebody yawns on a train, and eleven strangers quietly prove otherwise.”
Why Yawning Spreads“A wage is an obligation on a company. A tip is a feeling in a customer. Somewhere in the 1870s, someone worked out that the second one is much cheaper, and we have been calling it kindness ever since.”
Why We Tip“The voice is fine. It is a perfectly good voice. What ruins it is the label. The moment you know it is you, you are not listening to a sound, you are auditing a self.”
Why Your Own Voice Sounds WrongYes. Five complete entries, including the sources, are free: download the sample PDF. If it is not your kind of thing, don’t buy it.
A 182-page PDF, set at 6×9″ like a real book, with 50 entries and 50 drawings. It works on a phone, a tablet, a computer, or printed out. Instant download after purchase.
Fair question, and the honest answer is in the sources. Every entry was researched against primary sources where they exist, and the citations are printed so you can check them yourself. Where the research came second-hand, the entry says so. One entry was cut entirely because the only support for it was blogs quoting each other. AI tools were used in making this book; that is exactly why every claim is sourced rather than asserted.
No, and most people won’t. Each entry stands alone in two or three pages. It is built to be opened anywhere, which is also the honest way to read it: a few at a time is better than fifty in one sitting.
People who ask why, and people who are hard to buy presents for. If someone in your life has ever derailed a dinner by asking where a word came from, this is aimed squarely at them.
It is a digital download, so the statutory right of withdrawal ends once the download starts, and you agree to that at checkout. That is why the sample is five full entries rather than a teaser: see what it is before you pay for it.