The one-thousandth block in each column is partly overlapped by the vertical black separation line and makes recording a number very difficult in this block. If this pad was consistent to Wilson Jones pads and only shaded areas instead of using black lines that would allow for readable entries.
We could no longer buy the columnar books we used. Really wanted to love these for the price but I can't use over half of them. Paper qyality is nice but the columns are not evenly spaced. Somehow its not every sheet. Some look pretty normal and some are tiny. How they are mixed together in the same book I don't know.