Paul McCartneywill reflect on his time pilotingWingsin an upcoming book that focuses on his post-Beatles band.

Starting from scratch after The Beatles felt crazy at times.

There were some very difficult moments and I often questioned my decision.

Paul McCartney to Revisit Wings Era With ‘The Story of a Band on the Run’ Book

Paul McCartney and WingsReg Lancaster/Daily Express/Hulton Archive/Getty Images

But as we got better I thought, OK this is really good.

We proved Wings could be a really good band.

It was a huge buzz.

A Morgan Neville-directed documentary about McCartneys solo and Wings years is alsoin the works.