Running for president involves maintaining a careful and professional image.

A lot of the candidates looked very different before public life.

Read Business Insider's round-up to see how 14 of them looked.

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Candidates for President of the United States will spend years crafting their public image and honing the perfect resume before launching their bid, consulting an army of public relations specialists along the way.

But they weren't always that way.

Business Insider though has unearthed images of some of this year's challengers at high school which show them in a different light, before they became public figures.

Not every candidate has a publicly-available photo, or responded to Business Insider's requests with a new image — but most contenders are represented.