[consulting] How to write books about Drupal (or anything, I guess)

[Ryan Cross]

On Tue, Aug 3, 2010 at 5:22 AM, Tom Geller <tom at tomgeller.com> wrote:
>
> * So: A moderate amount of money when you sign the contract, an equal amount when you're done writing, then no money for a while -- or ever, if it doesn't earn out. On the other hand, a successful "evergreen" title can pay royalties for years.

What is an "evergreen" title?