Goodreads Librarians Group discussion

The book Digging Into Wordpress has a few issues:

* The title should be "Digging into WordPress", with WordPress being one word and the P capitalized

* Chris Coyier is a co-author, not an illustrator

* The book's website is http://digwp.com

One of the authors, Chris Coyier, needs an avatar, which can be found at http://gravatar.com/chriscoyier

Shea wrote: "The book Digging Into Wordpress has a few issues:

* The title should be "Digging into WordPress", with WordPress being one word and the P capitalized

* Chris Coyier is a co-author, not an illustr..."

All three editions had issues. And looking for a cover for one.

Is that avatar covered by copyright? There is no indication that it is free for everyone to use.