My text on the writing and editing of Magnum China is up on the Magnum Photos website. 

Here's a snippet...

Writing and editing Magnum China, alongside my co-writer and editor Zheng Ziyu, was a mammoth undertaking. In addition to working with the extensive archive itself, we interviewed photographers, and reviewed ephemera, and additional visual materials spanning the 1930s to 2018. This period was photographed by Magnum photographers in a diversity of styles, with commissions ranging from international magazines to galleries and self-funded projects. Integrating all this material into a coherent body of work posed a considerably dilemma to Ziyu and myself.

Read more here...