Table 6 above, showed us that although we could pack our screen with 170 characters per line, in practice 3 pixel wide fonts are almost unreadable, even at the highest available resolution of Layer 1,2. In the example program that's meant to demonstrate character cells for the AT modifier (but written using the POINT modifier strangely enough!) we're including below, you can see all the possible combinations for all layers.

Fig. 8 – Layer 0 coordinate system for PRINT and INPUT

Fig. 9 – LoRes and Standard Resolution coordinate system for PRINT and INPUT

The author's personal preference is the 128 column text of HiRes Layer 1,2 as it's clear enough to read but not too big as to not be able to fit a lot of information onto your screen.