Understanding Pageviews and Uniqueviews with Date Range (no replies)

I have installed PIWIK on our internal blog and it seems the unique views exceeds the total number of employees when the date range is by month, for example, the month of April.

Am I understanding this correctly:

Pageviews -

Day 1 - if one person reloads the page two times - Pageviews = 2
Day 2 - if the same person reloads the page two times - Pageviews = +2 = 4 pageviews

Unique Pageviews

Day 1 - if one person reloads the page two times - Unique Pageviews = 1
Day 2 - if the same person reloads the page two times - Unique Pageviews = 1+0 = 1 Unique Pageviews

Date Range: Month
4 pageviews
1 Unique Pageview