A divider assembly is shown and described herein. The divider assembly may divide a stack of sheets, the divider assembly may include a body and a tab extending from the body. The divider may include at least one arm extending from the body and defining an elongated slot with the body that is configured for connecting to a binder. Further, at least one protrusion may be configured to selectively abut against bindings of the binder to selectively attached the divider thereon.