Overseas volunteering charity International Service has adopted a new visual identity in an attempt to dispel an image of helping unskilled graduates take a career break.
The organisation says demand for volunteers is still strong, but developing countries want experienced professionals rather than "well-meaning amateurs".
The charity also has a new strapline, "Partners against Poverty", which features in a new logo and on literature, and is intended to emphasise its work with NGOs in the southern hemisphere.
Chief executive Jane Carter said: "The rebrand symbolises the partnership we have with local organisations against the injustice of global poverty.
Our volunteer development workers are skilled professionals who work alongside local people in a spirit of cooperation and humility."
International Service was originally founded by the United Nations Association in 1953, but is now an independent charity working in Bolivia, Brazil, Chile, Mali, Burkino Faso and Palestine.