Why Reading Volume Matters: Read Anne E. Cunningham and Keith E. Stanovich
See an excellent article titled “What Reading Does for the Mind” that could be used in professional development, or to help convince a school board that the volume of reading should matter in secondary schools.
Online at
https://scholastic.vo.llnwd.net/o16/teacherdashboard/live/c13_s2_t1_pa3.pdf or https://www.aft.org/ae/springsummer1998/cunningham_stanovich or https://ebooksforstudents.org/whatreadingdoesforthemind/ in case one of the earlier sites disappears.