The seller did not state that there were 2 chapters filled in and could not be completed in the workbook. What good was it to purchase a book which only has 3 chapters to be used? At least the seller refunded my purchase price, but not the shipping cost. Seller said they stated it had notes in the margin in the advertisement of the book! Notes in the margin? I found 2 completed chapter of a child's summer workbook, which made the book worthless! I feel they should refund my wasted shipping cost!