Books are a wonderful provider of knowledge and pleasure and some types of books should be in every home.書籍是知識和樂趣的絕佳提供者，有些類型的書籍應該放在每個家庭中。Commonly called nonprofits, these organizations are primarily nongovernmental service providers.俗稱非營利組織，這些組織主要是非政府的服務提供者。