Kate, the Duchess of Cambridge,  launched on Sunday a book of photographic portraits taken during Britain’s coronavirus lockdowns that she said would provide a lasting record of the global pandemic.

Kate, who is married to Prince William, the Queen’s grandson and second in line to the throne, began the project with the National Portrait Gallery last year, inviting people to submit photos taken during Britain’s first COVID-19 lockdown.

A panel of judges including Kate chose 100 portraits from more than 31,000 entries, which were shown in community and digital exhibitions before the book was announced.

“Through ‘Hold Still’, I wanted to use the power of photography to create a lasting record of what we were all experiencing – to capture individuals’ stories and document significant moments for families and communities as we lived through the pandemic,” Kate wrote in the introduction to the book.

The book, called “Hold Still: A Portrait of Our Nation in 2020”, will be available from May 7, exactly a year after the project kicked off.

Net proceeds will be split between the British mental health charity Mind and the National Portrait Gallery.