This book presents an edition of the three school primers in the Southern Unami dialect of the Delaware language (Lenape; ISO code unm) that were produced by the Baptist missionary Ira D. 布兰查德在1834年和1842年. 它们的简短标题是: Linapi本部Lrkvekun (布兰查德1834 a), Linapie Lrkvekun (布兰查德1834b 特拉华第一本书 (布兰查德[和旅行车]1842). 布兰查德得到了两个会说两种语言的年轻人的帮助，他们是詹姆斯·康纳和查尔斯·Journeycake.