perl - How do I learn about programming fundamentals? -

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I'm starting in programming, I have a big piece of code. I break it into functions, return values, I want to pass values ​​into another function. I want to be an expert in doing this to tell me where to study or how to become a specialist on these simple basic principles when I use the pointers in the function and all this?

As the beginning,

Pearl The best way to read a standard book eg; From inventor himself.

This book helps you to understand a lot of things like

  • subrutines
  • Data structure
  • Context , etc.

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