6×3 is also good (fits on a 7×4 grid). https://archive.org/details/zx_Tasword_2_Tutor_1983_Tasman_Software_a https://archive.org/details/zx_Tasword_2_Tutor_198

6×3 is also good (fits on a 7×4 grid). https://archive.org/details/zx_Tasword_2_Tutor_1983_Tasman_Software_a https://archive.org/details/zx_Tasword_2_Tutor_1983_Tasman_S...