We each live according to our own personal code of ethics but what moral principles guide our work? The 19 feature theme articles in this issue debate many of the ethical questions that confront us in programming, research, safeguarding and volunteering, and in our use of data, new technologies, messaging and images. Prepare to be enlightened, unsettled and challenged. This issue is being published in tribute to Barbara Harrell-Bond, founder of the Refugee Studies Centre and FMR, who died in July 2018: www.fmreview.org/ethics