Vandenberg worked as an art director for ad agency Doyle, Dane and Bernbach in New York. He was already a keen photographer before moving to London and had a photograph in the Museum of Modern Art. He moved to London in 1964 to pursue a career in photography- editorial, fashion, advertising and music. Vandenberg collaborated on the album cover of Sgt Pepper's Lonely Hearts Club Band. Disillusioned with his commercial practice, Vandenberg eventually abandoned his business work altogether to concentrate on his personal street portraits. From the 1970s onwards, Vandenberg's own photographs—as opposed to his commercial work—were made on the streets, although the emphasis of the pictures had now changed. Where earlier he had studied depression and poverty, producing images of alienation, he now photographed people looking directly into the camera and enjoying themselves; people who attracted him and with whom he could establish a rapport. His subjects were now relaxed and responsive, sharing with him in the making of the picture. His series of high street photographs embraced the people of Singapore, Tokyo, Hollywood, New York, Hong Kong, Beijing,
Laos and London, and totalled thousands of images. In 1980 Vandenberg co-founded the "Hereford Photography Festival". This was the longest running annual photography competition in the UK until its closure in 2012. In 2016 Stanley Barker published Vandenberg’s first monograph ‘On a Good Day: Al Vandenberg’. "Vandenberg sees all this with a sincere and perceptive eye and a sensitive understanding of character, regardless of social standing and cultural background…" explains Senior Curator of the V&A, Martin Barnes, in his afterword. ==Death==