Check it out! 
Tumblebooks is offering free access to their collection of online books for kids, teens, and adults all Spring and Summer. Talking picture book and math books for elementary students, novels and graphic novels for teens, a collection of audiobooks for all ages, and even a romance novel collection for adults - check them out here:

TumbleBook Link

TumbleMath Link

TeenBookCloud Link

audiobookcloud link

romance book cloud link