From Corolin Colorado:

Summer reading and ELLs

Libraries offer all kinds of resources and opportunities to ELLs and their families, but many families may not know about the kinds of services and programs that libraries offer. In order to increase participation in summer reading programs, it may be helpful to take a field trip to the library during or near the end of the school year or invite a librarian to visit the classroom so that the librarian can introduce the summer reading program to students. The librarian can explain what the summer reading program involves, how to sign up, and other library activities that students will have access to during the summer. When summer arrives, student will feel more comfortable asking for information and signing up for the program if they have some background knowledge!

In addition to library programs, many ELL summer school programs offer some helpful resources, such as ELL/bilingual summer reading lists tied with the upcoming fall curriculum. While the lists may not fit other districts' curriculum guidelines, they offer some great recommendations of books. Check the hot links for a great example of an ELL summer reading list.