Public schools; school libraries; catalog of print or digital materials available in school libraries and used as instructional materials; development, implementation, and maintenance. Requires the principal of each public elementary or secondary school or his designee to develop, implement, and maintain in an electronic spreadsheet or substantially similar electronic format a catalog of all print or digital materials, as defined in the bill, available in the school library and all instructional materials, as defined in the bill, used as a part of the school curriculum. The bill requires such catalog to (i) be developed and posted in a publicly accessible location on the school website in a searchable and downloadable format; (ii) identify each item by the item's title, author, and, if applicable, International Standard Book Number, or such other identifying features or information as the principal or his designee deems appropriate; and (iii) be maintained and updated as necessary to accurately reflect all print or digital materials available in the school library and any instructional materials used as a part of the school curriculum.