Since this question is posted under the "Meditation" section of the site, then I should only answer simply, and with no elaboration the following:

Not Enough.

Since there is a spiritual tone to the Perl Monks site, though, I should supress the awful member of the Seven Deadly Sins, that being "Greed" (or would it be "Gluttony?") and answer similarly to jepri's answer above and say:

enough.

But "Vanity" being what it is, I cannot resist the temptation to list all of my Perl books.  So, here's my list:

Learning Perl (O'Reilly)
Perl in a Nutshell (O'Reilly)
Perl Cookbook (O'Reilly)
Programming Perl (O'Reilly)
Programming the Perl DBI (O'Reilly)
Perl (Black Book)
mySQL and Perl for the Web (New Riders)
Elements of Programming with Perl (Manning)

God Bless Tim O'Reilly!

In reply to Re: How Many Perl Books Do You Own? by Spenser
in thread How Many Perl Books Do You Own? by dru145

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.