This sketch of a book uses two vanishing points. The basic structure of the book is done in pencil with further detail being added in ink in order to give the book more realistic detail. The spine of the book is rounded off and the size of the cover in relation to the pages has been increased. The pencil lines have been left to show how the lines are used to give the impression of a three dimensional book. In order to get the proportions of the book correct an alteration was made (the first lines showing the length of the book are left) to ensure the book looked realistic.