Obviously Elementary Community Civics is not a Fair Trade Book. It's a collectible, vintage book, and those who want it need to snap up copies while they can for $10 per book, $5 per package, plus $1 per online payment. Four books of this size will fit into one package. Please resist the temptation to inflate prices by ordering editions from four different years (this book went through several reprintings).
It's possible to buy the "supplements" for several states separately, either from this web site or directly from Amazon. Though slim, and produced as inserts to be tucked into the hardcover book rather than bound as separate books, each one will count as a separate book for ordering and shipping purposes.