WHILE OTHER GIRL DIARIES ARE SMALL AND THIN, this journal is 8.5 x 5.5 x 1 inch with 80 lined pages, a fancy bookmark and A COVER THAT LIGHTS UP! Most young girls and/or teens have secrets and this hardcover diary will keep it safe because of the invisible ink pen and black light. Nobody will be able to see what she wrote unless they have a black light! That's right, the pen is invisible and there is a light right on it to see the words. Now, no snooping siblings can see what she writes!