Abstract: A connected document such as a school book, catalog, etc . . . separable in independent detachable portions, so as not be have to transport but the useable portion or portions to be able to file, reclassify, replace, complete these independent subassemblies without having to manipulate all of the document, comprised by a cover and detachable portions (1) such as notebooks, magazines, pockets for loose-leaves, provided with securement elements coacting in a detachable manner with complementary reception elements secured to the cover of the document, characterized by the use, to ensure the securement of the detachable portions (1), of staples (2) or pins (3) secured to the back of these portions (1) by the use of resilient receives (4) fixed within the back of the cover, in combination with recesses (5) provided in the staples (2) or pins (3) adapted to be engaged in the receivers (4).