square frame 7 grids (blue)(田字格7格（蓝色）) square frame 7 grids (pink)(田字格7格（粉色）) square frame 9 grid (blue)(田字格9格（蓝色）) square frame 9 grid (pink)(田字格9格（粉色）) pinyin matts 7 grids (blue)(拼音田字格7格（蓝色）) pinyin matts 7 grids (pink)(拼音田字格7格（粉色）) pinyin matts 9 grid (blue)(拼音田字格9格（蓝色）) pinyin matts 9 grid (pink)(拼音田字格9格（粉色）) four-line grid/pinyin exercise book (blue)(四线格/拼音本（蓝色）) four-line grid/pinyin exercise book (pink)(四线格/拼音本（粉色）) virtual palace grid (blue)(虚宫格（蓝色）) virtual palace grid (pink)(虚宫格（粉色）) pinyin virtual palace grid (blue)(拼音虚宫格（蓝色）) pinyin virtual palace grid (pink)(拼音虚宫格（粉色）) 8 grid small abacus (blue)(8格小算草（蓝色）) 8 grid small abacus (pink)(8格小算草（粉色）) 10 grid small abacus (blue)(10格小算草（蓝色）) 10 grid small abacus (pink)(10格小算草（粉色）) little english (blue)(小英文（蓝色）) little english (pink)(小英文（粉色）) regular script (blue)(小楷本（蓝色）) regular script (pink)(小楷本（粉色）) small notes (blue)(小笔记（蓝色）) small notes (pink)(小笔记（粉色）) small composition (blue)(小作文（蓝色）) small composition (pink)(小作文（粉色）)

each book contains 23 covers in total(每本含封皮共23张)