How to best way to learn GraphQL query/mutation etc?

[markrado123]

Hello

I'm newbie, I using graphql in my store on next.js.
At the moment I created all queries, and mutations by trial and error method.

Which sources is good for me, for discover all popular query scheme etc for graphic?

At the moment I am using sources like:

https://hygraph.com/docs/api-reference/content-api/filtering

https://buildkite.com/docs/apis/graphql/graphql-cookbook

Maybe another source is better, I want to know all options in build queries, etc.