There's still time to get some copies of this for your friends; for anyone who ever goes outdoors and looks upwards it is a nice present; even idiots who don't know their cumulus congestus pileus from their altocumulus stratiformis perlucidus undulatus, and don't care, will enjoy looking at the pictures.
The crepuscular rays of the latter are shown in the picture below. It will remind those whose thoughts at this time of year turn only to self-indulgence and excess that contemplating the glories of nature can bring inspiration and spiritual uplift to us all. It is, moreover, very cheap and doesn't give you a hangover.
Actually, some will find this one a bit commonplace and not in the best of taste; there are lovelier cloud formations illustrated in the book, and real cheapskates will find that much of its content can be seen online for nothing, here. But peering at a monitor is no substitute for lifting your eyes and gazing, gin and tonic in hand, at these wonders in the sky.
Happy Christmas from Cloud Appreciation Society Member No 8158 (out of almost 20,000)