Keeping a manga collection up to date without losing your Sundays

Every collector knows the scene. You are standing in front of the shelf, volume 9 in hand, asking yourself the same silly question: do I already own this one? You hesitate, you buy it, and that evening you find it sitting next to its twin.

The problem is not your memory. The problem is that a manga collection is not a list of books: it is a list of series, each moving at its own pace, with volumes appearing every few months and different editions depending on the country.

Why lists fall apart

Most people start with a spreadsheet. A column for the title, one for the number, one for "bought". It works for two months, then it collapses — for three reasons.

First, every volume has to be typed by hand. A twenty-three volume series is twenty-three rows. Second, nothing tells you what has actually been published: your spreadsheet knows your volumes, not the ones that exist. Third, nothing warns you about a new release.

Start from the series, not the volume

The approach that survives is to flip the logic: instead of recording what you own, start from what exists.

Add a single volume — whichever one is within reach — and let the catalogue fill in the rest. The whole series appears, including the volumes you don't have. All that's left is to tick.

That is exactly what Honya does: add one volume, and the full shelf appears, with the missing ones greyed out. You don't type; you tick.

The real test: in front of the shelf

A well-kept collection is judged in a single moment: the one where you are in a bookshop, with no signal, and ten seconds to decide.

What you need then fits in one image: the series, all its volumes, and which ones you're missing. Not a spreadsheet to scroll. Not a search to type. A shelf, like the one in front of you.

And what's coming next

The last piece is anticipation. Booksellers' catalogues contain pre-orders: announced volumes, with their dates. An app that reads those catalogues therefore knows, without you lifting a finger, that volume 11 lands on 12 November.

That is the difference between a list and a living collection. A list records the past. A collection tells you what's coming.