CJPR Content Means by Volume and Issue Page content means over the life of the journal are of limited value, as the layout, fonts, and font size have changed throughout the years. Generally, however, the layout, fonts, and font size are consistent within the period of the self-published issues/volumes (i.e., CJPR Vol. 1-10) and within the period of the Sage-published issues/volumes (i.e., CJPR Vol. 11-19), but not across both periods.