Oh, yeah, um . . . *scrambles for a justification to get the DM on board* . . . it's, uh, very well organized by environment (being a compendium written by rangers on their favored terrains) and then further sub-categorized by number of toes, size of print and CR.I was going to mention the information problem, but I thought I'd roll with it. Satyrn - good snark, but given the information we have ("some tracks"), the Fool's book had better be pretty dog-gone big!
And yeah, it's huuuge. The only reason I can lug it around on adventures is because of the bag of holding. And it only just fits inside, leaving room for nothing else but Peterson's Field Guide to Lovecraftian Horrors . . . which I don't remember packing, and have tried to throw away twice.