Looking for a book on pgsql

We have a closed Postgresql 8.4 system, from a vendor, so I don't have access to a shell prompt on that system, but I have access to a psql prompt on that machine.

I'm looking for a book to learn Pgsql, preferably with a CD with it's own db. I cannot copy our company database because it is many gigs and actually takes 24+ hours to copy, and yes, I do need multiple tables to do testing. Can anyone recommend a book for me?

I have windows 7 on my PC if that makes a difference, along with a psql client on the same PC.

Thank you.