What is 1977 best selling album by fleetwood mac?

The best selling album by Fleetwood Mac in 1977 was "Rumours". It released on February 4, topped the charts in several countries including the United States and the United Kingdom, and spent a total of 31 weeks at No.1 in the US. The album sold over 40 million copies worldwide and became one of the best-selling albums of all time. "Rumours" featured hit songs such as "Go Your Own Way", "Don't Stop", and "Dreams", which remain popular even today. Moreover, the album was lauded for its unique sound, the result of the band members' personal and professional turmoil at the time, and is regarded as one of the greatest albums ever made.