You should print a copy each of the PDF files in this directory before cross country flights. all.PDF includes both the flightplanner.pdf pages, and VFR_CC_guide.pdf pages all in one file. flightplanner.pdf forms work best if printed front to back on the same page. densaltchrt.pdf is a handy density altitude chart that may be needed for planning. weather.pdf is a good 'cheat sheet' of some common weather information. The extra_xc_stuff directory has a few other random files that may be of interest, but are not required.