They picked up on what he wrote in his column.

"What's the most popular thing you've ever written about in your column?"

It is written in one column and 34 lines per page.

It is written in one column of 25-26 lines per page.

The text is written in one column per page, with 23 or more lines.

The text is written in one 27-line column per page.

For reasons of economy, the text is written in three columns.

The text is written in 2 columns of 38-55 lines per page.

I never did until you wrote about the idea in your column.

The book contains 188 pages and is written in two columns.