I have just finished a book called Eating with the Seasons by Paula Bartimeus. It is not a macrobiotic book but there is a great amount of useful information in the book. she talks about the inportance of seasonal ingredients, cooking methods, yin and yang, warming and cooling foods etc.
Another book is 'How to see your health:the book of oriental diagnosis' by Michio Kushi. He has written over 5o books on macrobiotics and this is one of very fascinating ones. It is a diagnosis method that tells you various conditions by looking at someone's physical characters. I knew what you eat and environment you are in at present influence how you look and feel. But even before you are born (what your mother was eating when you are inside her tummy) could influence how you look and your tasting buds!? It was a very interesting read.