Oak Meadow Basic Life Science workbook and teacher manual grade 6 published in 2018. The workbook has writing or markings on a lot of pages but not even close to everything has been answered in the book. Both books have scratches, indentations, and small stains on the front and rear covers. The teacher manual has a slight stain at the top of page 139. The workbook has stains on the bottom 2 inches of pages 60-63. Page 130, 131 stain top half of page, 161 stain bottom left of the page, 227 small piece torn. There is a stain on the inside of the back cover and on page 340. There is writing or markings on pages 7. 9, 34, 35, 36, 37, 68, 69, 82, 85, 106, 110, 117, 119, 129, 133, 132, 134, 135, 136, 140, 147, 188, 203, 204, 205, 228, 229, 270, 274, 299, 324, 325, and 338.