I have read them both - you only need one... unless

you like his writing or want to steep yourself in macro mentality.
The biggest part of macrobiotics is cooking and eating the food. That will teach you more than everything you need to know...
Two big boo-boos in the general Macro culture - don't pressure cook your rice very often - too yangizing. And do cook your miso in the soup for a minute or two!
Best,
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