Go to Cixi Bookstore (next to Cixi Youth Palace) and Cixi Bookstore (next to Xincheng Avenue) first. If not, you can also go to the warehouse of Cixi Bookstore (near the former Cixi Women's Insurance Hospital, opposite Cixi Jintang Academy, a little north of Sanbei Street, Suntang Road) and ask. If it still doesn't work, ask the teacher at your child's school, or ask the teachers at other primary schools you know: Do you have any extra books at school (general situation; Every school will have one or two textbooks; Some methods are less likely to guide books).