Four Days in June has 384 pages.
The Fourth of June has 208 pages.
My Many Colored Days has 40 pages.
The Rule of Four has 384 pages.
Four Quartets has 40 pages.
Ball Four has 371 pages.
And Four to Go has 190 pages.
Fifteen weeks and four days.
A Gathering of Days has 144 pages.
In the Days of the Comet has 378 pages.
Specimen Days has 308 pages.
Following June, which has 30 days, the days in each month are as follows:July = 31August = 31September = 30October = 31November = 30December = 31Therefore, there are four months following June which contain 31 days, and two months which contain 30 days.
The Four-Story Mistake has 177 pages.