Periodica
The Reading Room
A library for every period.
Every product explained, nothing ranked.
Why it looks like this
You may have wondered about the palace. It is not a price tag, and it is not a dress code. Periodica is drawn as a utopia: a small, imagined world where period care is treated gently and beautifully. Find a seat, maybe a cup of something warm, and read a little, or nothing at all. Stay as long as you like. The Quiet Corner and the newsletter are here too, whenever you want them. There is nothing you have to buy. Everyone is welcome, at any age, of any gender, on any budget. No need to take your shoes off, unless you want to.
Come in. The light is on.
— The Editor
General information, not medical advice. For anything about your own health, talk to a healthcare provider.
The card catalogue
Try: heavy flow · swimming · first period · perimenopause
On the front table
Start here
The stacks
Browse by subject
One book per subject. A new book appears here when its first article is published.
Ex libris Periodica
- Start HereFront deskVol. I2 articles
- The FormatsEvery product, one at a timeVol. II9 articles
- How-To & CareUse, clean, fix, disposeVol. III5 articles
- Flow, Fit & AbsorbencyHeavy or not, labels, sizingVol. IV2 articles
- Everyday LifeSleep, water, sport, travelVol. V6 articles
- Life StagesFirst period to menopauseVol. VI3 articles
- Body & HealthCycle, conditions, when to goVol. VII1 article
- Every BodySensory, disability, transVol. VIII3 articles
- Materials, Safety & PlanetWhat it’s made of, the rulesVol. IX1 article
- Access, Culture & CanadaFree products, history, trendsVol. X8 articles
The reference desk
Look it up
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Glossary
Words, plainly
Every term we use, explained where it appears and gathered here. -
Wait. What?
Surprising facts
The facts inside our articles, with who said them.
Special collections
Reading lists for you
Who we mean by “readers.”
Everyone who menstruates, at any age, in any body, of any gender, ability or background, and everyone who supports them. When we cite research, we use the words the researchers used.
- TeensFirst periods, in plain words
- Parents & carersTalking about periods at home
- Neurodivergent readersSensory, routines, step by step
- Health concernsWhen something feels different
- Trans & non-binary readersPeriod care beyond the aisle
- Perimenopause and afterWhen cycles start to change
- Heavy flowEvery format, every heavy day
Looking for a quiet, cozy spot?
Stay in touch
The newsletter
One email a month with new articles and news from the shop.
Letters to the Editor
Shape the library
Tell the Editor what you’d like explained next, or ask the Request Desk for a product we don’t carry yet.
How this library is paid for. Periodica is a marketplace too. What the shop earns keeps the library free to read. The shop opens later.
Written with our proud team of AI assistants; read and signed by the Editor. General information, not medical advice.