I assume that when this book was written (1969), publishing standards in gambling theory were lower. Computers were not available to do "brute force" calculations, so no in-depth statistical analyses were expected. Gambling wasn't so mainstream as it is today, and certain myths had not been dispelled. So while I cringe at the statement "Finally, keep in mind that in all games of chance the 'feel' of the dice must be considered," I give the authors credit for at least cataloging a list of canonical opening moves. Unfortunately, they have been viciously upstaged by Wikipedia.