Now that you have a basic level of literacy in the C# language, you're ready to seek out additional skills and syntax. This most commonly takes the form of online communities, tutorial sites, and YouTube videos, but it can also include textbooks, such as this one. Transitioning from being a reader to an active member of the software development community can be tough, especially with the abundance of options out there, so I've laid out some of my favorite C# and Unity resources to get you started.
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