Yes, it's true, but please read what they have to say in Why should you buy it when it's free to read online?. Please note also that Perlmonks will get some money if you buy books using the links listed above (read it here, footnote 5).
It is a nice and simple way to contribute.

Ciao, Valerio

Hofmator: Thanks, I may end up using HTML Mason on a project in the future, and it's always handy to be able to look inside a book before buying it. I doubt there are many local stores that stock a copy of something that specialized.




valdez: I'd actually be more likely to buy a hard copy of a technical book after reading parts of it online as I'd know whether or not it had the type of information I needed.

As they point out on that site, it's easier to refer to an ink and dead trees version when typing in a program.

I would be unlikely to buy it at Barnes and Noble (where those links lead) however, as I live outside the USA. I don't mind paying in dollars, as my credit card company convert the amount automatically, but International shipping can be expensive.

Perhaps Perl Monks will provide UK and European versions of their book links in the future.