Invoking the Light of the Seven Rays. A Practical Guide to learning the Alchemy of the Seven Rays by Kim Michaels contains ALL decrees to the seven rays that have been released through the Transcendencetoolbox.com website.
Before the decrees to each ray, there is a short introduction the the ray and its qualities. All the decrees are repeated multiple times, so that you can give a decree 9 or 36 times without having to count.