Billboard 200

The Billboard 200 is a weekly record chart published by Billboard magazine. The chart's rankings are determined by a combination of sales and streaming activity. The weekly sales period currently runs from Friday to Thursday. As a benchmark of success in the music industry, the Billboard 200 has been a key indicator of an artist's popularity, with many notable acts achieving number one status on the chart. Taylor Swift has had multiple number one albums on the chart, including '1989' and 'Reputation'. The chart's methodology has been influenced by industry experts such as Bob Lefsetz.