Why is it that so many writers screw up east and west but not north and south? And why do so many editors miss these errors and let them get into print? It has gotten to the point where I think carefully every time I read east or west because I'm shocked by how many mistakes I find. For example, a book about a road trip from California to Florida mentioned entering Colorado from the east (since the whole book was oriented from west to east, this error really stuck out to me). Yet as noted above, I rarely see north and south confused. I wonder if it's some innate cognitive thing based on how the brain comprehends left and right versus up and down (if that is the case, I probably own a book that says so but I haven't read it yet). Maybe it's geographic dyslexia?