The "Blue Book" is the signature publication on the Minkin site trace fossils. It was published in 2005 by the Alabama Paleontological Society. It is a good reference for anyone wanting to learn more about the tetrapod trackways and plant fossils found at the Minkin site. It is also a good reference for some but not all of the invertebrate trace fossils. Some specimens interpreted in the Blue Book as Kouphichnium were found in later studies to have been incorrect. The interactive website allows us to correct those mistakes.
The whole Blue Book can be found here: Blue Book.