The field books come in a set of 5. The field book measure 3.5 inches by 5.5 inches which makes them pocket size and easy to travel with (purse, pants pockets, or to be kept in any place). I can see them working great as a grocery list book that can easy be stored and transported. The colors of the books are 2 brown (like boxes or paper bags), 1 black, 1 orange, and one yellow. In the front they have written in large letters “FIELD BOOK ELAN PUBLISHING.” In the back they have written “FIELD BOOK” and the company website. It is held together with three staples. The cover seems to be a thick cardstock paper. When you open the book you see that you can write your name, email, and phone in case you loose it. In addition, it gives you lines to write the project details, starting date, and completion date. It contains 48 pages of lined paper with 21 lines that can possibly be written in. The lines are about one fourth of an inch apart, meaning that it is meant for small writing size. The inside of the back cover has the edge printed as a ruler up to 5.5 inches. My son likes to use them as on the go drawing paper. He keeps some in each of our cars, along with a pencil that easily clips onto the cover.