The Classically Cursive series teaches a handwriting style quite similar to that of D'Nealian. It does not teach manuscript, except in a very cursory fashion in Book I, and focuses entirely on cursive. The four books offer a fair amount of content, working with letter shapes, connections, and then words, before it goes on to some Bible verses (NKJV), the ten commandments, catechism questions and attributes of God.
Book III would be more appropriately called a copy book. It does not spend any time practicing letter forms, jumping right to having students copy down the 107 question of the Westminster Shorter Catechism in sections below the text.