Ranked in these QuestionsQuestion Ranking
Pro Project-based learning
How to GraphQL takes you through building a Hacker News clone from scratch.
How to GraphQL is open source and accepts community contributions, which makes it possible for people to add a tutorial for a specific technology easily. Having a community behind it also acts as quality assurance - the content can be reviewed and edited by different sets of eyes, typically resulting in higher-quality material.
Pro Fairly comprehensive
Apart from core concepts, How to GraphQL covers implementation with most frontend and backend technologies such as React, Node, Elixir, Java, Ruby, and Python.