ReadTheory is a free online platform dedicated to improving reading comprehension for students and teachers. Featuring thousands of interactive exercises and worksheets, the tool allows for personalized learning experiences tailored to each student's reading level. It supports users in grades K-12 and beyond, including ESL and adult learners. With its easy-to-navigate interface, it helps educators track collective progress across the entire classroom, promoting engagement and knowledge retention. Access is available at no cost, ensuring that all students can benefit from quality reading exercises designed to bolster their skills effectively.