The link below directs to the PWCS Summer Reading page. There are suggestion lists by grade level and also links to the public library page for the summer reading program.
https://www.pwcs.edu/departments/library_media_programs___research/summer_reading_lists
Sora is a great resource for students to get digital access to books over the summer as well. Kids don't need a code -- it's linked through Clever for all PWCS students.
Here are Sora demo videos to assist: