The original Thimbleweed Park and Ron Gilbert's blog talk about Puzzle Dependency Charts and their fabled use in adventure game design.

I always wanted to make a PDC for TWP, but it's too big a game! Thankfully, Delores is a bit more managable.

This PDC imagines a world where you do all the photo assignments in one go. Also, it doesn't provide all the available solutions to every puzzle even though some can be completed in a couple of different ways.

If you want to know more, please read my blog post about PDCs[dreamsofgerontius.com].

Enjoy!