How do I read a Google AdSense report?

In general, AdSense reports show the following fields of information:

* Page Impression -- how many times the page or pages containing the AdSense advertisement was shown to visitors
* Clicks -- the number of times someone actually clicked on an advertisement
* Page CTR -- the resultant click-thru rate, as a percentage
* Page eCPM -- the effective cost per thousand (M = mil, it's Latin) for your ad space. This is a statistic that only a marketing person could love, so it's fine if you ignore it, but it can show you what ads / ad units are most valuable, particularly if you use channels
* Your earnings -- no explanation needed. Bigger is better. :-)


I hope that helps clarify how to read these Google AdSense reports!