They is a series of photographs mostly taken while Zhang was working in Chongqing; they are of scenes in Chongqing itself but also nearby on the Yangtze and Jialing rivers and elsewhere. The colour photographs are square format, and employed a Holga camera. A book of the photographs was published in China in 2012; two years later a smaller selection was published in Paris.
''Coastline''
For Coastline, Zhang "visited every town and city along the Chinese coastline", from 2009 to 2013. The photographs are colour again, but this time Zhang used a Mamiya 7 II camera. Zhang has described the coastline as " first area of impact from external culture and the rapid economic development; the series "records subtle and surreal moments of life by the sea". Cited by Agnès Sire as showing an intimate and contemporary China without any exoticism, Coastline won 2011, and as a result was widely exhibited and published in book form in Arles by Actes Sud in 2011. Three years later a different selection was published in Kowloon by Jiazazhi Press, and a smaller selection in Tokyo by Zen Foto Gallery.
''Envelopes''
In China photojournalists are offered cash for their positive comment on a topic they are covering. Although in his career as a photojournalist Zhang declined such offers of envelopes containing large sums of money where he considered it unconscionable to do so, he accepted those with smaller sums where he considered the topic insignificant. He collected the envelopes, which he has exhibited.
''Shanxi''
Zhang used a Holga again for the square, colour photographs of traditional rituals surrounding the lunar new year in Shaanxi. The book Shanxi was first published by Little Big Man in the United States; Sean O'Hagan describes it as "a seductive book, a glimpse of a world of pagan custom that somehow endures against the odds, dreamlike and entrancing".
Exhibitions
Envelope. Lianzhou International Photography Festival, 2009.
They. Pingyao International Photography Festival, 2009.
Coastline, Prix HSBC pour la Photographie; Galerie le Réverbère, May–July 2011; Galerie Baudoin Lebon, September 2011; Galerie L'Arsenal, September–October 2011; , November 2011.
Zhang Xiao 1. Geneva: Boabooks, 2010.. Black and white photographs; no captions, no text; in notepad format. Edition of 40 copies.
Zhang Xiao 2. Geneva: Boabooks, 2010.. Black and white photographs; no captions, no text; in notepad format. Edition of 40 copies.
Coastline. Arles: Actes Sud, 2011.. Book of colour photographs, no captions. With a preface by Yan Changjiang and an afterword by Jiang Wei; texts in both French and English.
They = 《他们》. N.p.: Jia Za Zhi Press, 2012. . Book of colour photographs, no captions; text in English and Chinese by Hai Jie. First edition of 500 copies.
They. Zine Collection 11. Paris: Éditions Bessard, 2014.. Stapled booklet of colour photographs, with one small original print and text by Zhang in English. First edition of 250 copies.
Shanxi. N.p.: Little Big Man, 2013. Book of colour photographs, no captions. First edition of 300 copies.
《海岸綫》 = Coastline.Sham Shui Po, Kowloon: Jiazazhi Press, 2014.. Book of colour photographs, no captions. With a booklet containing texts in both Chinese and English by Yan Changjiang and Gu Zheng, and other material. First edition of 600 copies.
= Coastline. Tokyo: Zen Foto Gallery, 2014. Stapled booklet of colour photographs; texts by Zhang and Gu Zheng in Japanese, Chinese and English. First edition of 500 copies.
Publications with contributions by Zhang
Unfamiliar Familiarities—Outside Views on Switzerland. Zürich: Lars Müller, 2017. Edited by Peter Pfrunder, Lars Willumeit, and Tatyana Franck.. A six-volume set: one volume by Zhang and the others by Alinka Echeverría, Shane Lavalette, Eva Leitolf, Simon Roberts, plus a text volume in English, German, and French. Published to accompany an exhibition at Musée de l'Élysée, Lausanne, Switzerland.