An organism (You're one.) is a system. As is a family, a society, or a population. Donella Meadows does a wonderful job helping us look at things and their behaviors as systems, as opposed to linear, A causes B-type explanations. Highly recommended.
This news of being named an [ALA] Alex Award winner is especially sweet because I, personally, know what it means to be included into a world of free access to books, which has been my real family since the first day of the first grade, when I stepped into the bookmobile.