collection.isHow to read a chart
How to read a ranking
Every chart states its metric, sources, time period and update schedule. Start with the question the page answers.
Four steps
Start with the metric
Views, units sold, bestseller positions and editorial scores answer different questions.
Check the time and region
Results can differ by month, country and platform. Use the labels on this page.
Open the original
Select an entry or the source arrow to check the original page.
See when it changed
Every chart lists its update time and schedule; completed months remain available as archives.
Contact and corrections
Spotted a wrong number, broken source or translation issue? Email [email protected] with the page URL and the specific entry.