There are a couple of ways to organize your notes in Anytype.
As others explained about Anytype is that your notes are not organised in folders and therefor have no tree-like structure that many of us are used to.
Anytype notes are based on types and relations, as well as links to organize your notes. This is incredible powerful but requires are different mind-set from the user. Notes are trown into a big black void where can pull them out in any way we like.
The first way is links where we make a MOC (map of content) or index as some call them. This is just a page with links like a book index without the page numbers. An index can be simple or beautiful, build however you like. THe most simple and most popular is an outline index. For example:
- Personal (header)
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- Finance (header)
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- Work (header)
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Below each heading are links that take you to other MOC/index pages of the important topics in your life or notes. The cool thing is that if you add an index page to the sidebar, you kinda get the tree-like structure. These links could also be sets which brings my to the second way of organising via SETS.
Sets are a query based on a relation or type where Anytype pulls all the notes out of that big black void to organise them in a set view of your choice (list, table, kanban or grid). You can then filter and order them as you please.
The cool thing about sets is that ones they are set up, they add any new note that meets the requirements of that set. For example, you made a set based on the Movie type. Now it shows all Movie notes. If you add a new note with the type Movie it instantly shows up in this set.
Something I would advice is to make a set based on a relation that all notes have by default, for example creation date. Then make a list view and sort it by date opened or date last edit, this way you have a place to find all your notes, specially those you used recently. It’s an easy way to find notes you created on accident as well.
A feature like sets but different are Collections, these are set-like views but they are filled manual and are not based on a type or relation. This is a bit confusing for most however you can add and organise things yourself. These can be unrelated things that you want to collect in a single place.
For example you make a collection all about your house. Where you add household tasks, but also your furniture objects, your wishlist of things you want to have, people that life in your house, plants that are in your garden and perhaps your car stuff because you like to see it in the same place.
Al these things seemingly have nothing in common to make a set based on a relation or type (because they are all different types).
There are other ways to organise your Anytype but I think these are the main ways.