A study guide set covering all 4 subjects. Includes answer keys and explanations for all 4 subjects. - Series Name: Summer Essentials! - Grade: 2 - Subject: Mathematics - Subject: Social Studies - Subject: Science - Subject: English Thank you for viewing. It appears there are no writings. There might be markings. They didn't seem to be visible. There are folds, wrinkles, and stains, but it's relatively clean.