These diagrams are helpful.

I would recommend: "Advanced Perl Programming" by S. Srinivasan. A student who doesn't have at least 2-3 quarters of 'C' will find the text challenging. Chapter 20, "Perl Internals" is quite informative as are others.

The OP has posed a very broad question, the general answer to which, just won't fit in a single Monk post. The question just has to get more specific otherwise at least I am unable to help further.

In reply to Re^2: References in Perl by Marshall
in thread References in Perl by misterMatt

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