To learn more about history, pictures, and everything in-between, we contacted James Jefferies, who is a Ph.D. candidate and Assistant Lecturer at the University of Essex and University of Wolverhampton, and recently gave a seminar about the First World War using a still from the BBC documentary The Great War from the 1960s. "I always find images are good to use in seminars as visual stimulants alongside questions for topics," Jefferies told Bored Panda.

"The image I used showed what appeared to be a British soldier (a.k.a a 'Tommy') sitting in a trench surrounded by bodies with a look of forlorn disillusionment. I played students a clip of the opening titles in which this image is used and asked my students for their thoughts."

"They said how strong it was and that it emphasized the notions of the futility of the First World War. I then showed them that the image was actually an altered composite image that was taken from an original image of Irish troops in July 1916. In the original picture, the soldier is surrounded by smiling comrades and his facial expression now, in its true context, suggests one of curiosity over having his photograph taken rather than forlorn and disillusionment," Jefferies explained. "Now, not only does this raise questions about why the image was altered and how this fits into the public perception of the First World War in the 1960s but it also makes you question yourself when presented with images. You start to think about the context."

Authorities have long understood the power of visuals too. "I think in politics, whether that be governments, parties and such, most use images to convey a message and also to influence an emotional response with people," Jefferies said.

"An example that comes to mind is a poster by the UK Conservative Party from the 1979 election campaign in the UK showing queues of people outside an employment office sign with words above saying 'Labour Isn't Working.' This poster and image struck a huge chord on the back of the period known as the 'winter of discontent' which had seen large numbers of strikes and rising unemployment. The image itself is fabricated but chimed into a feeling of disillusionment over the Labour government's handling of the crisis led by James Callaghan."

Jefferies thinks the poster also played a part in Margaret Thatcher coming to power in 1979 and pointed out it has since been adapted and parodied by satirists and other political parties.

"The poster seems to have embedded itself into the collective public memory and it's really fascinating to think about how one simple image can have long-lasting effects and also be used as a representation of that period of history," Jefferies explained.

In 2012, during the United States Presidential Election, the Republican Party even used a variation of the poster, with the slogan 'Obama isn't working' instead of 'Labour isn't working.'

In 2006, Professor Anna Pegler-Gordon, already talked about visual media being more accessible to students than the written record. Pegler-Gordon's students were saying that images give concrete shape to a world that sometimes seems intangible and they appreciated the immediacy of the image, which often conveys information quicker than a primary document in an unfamiliar language.

However, as valuable as images can be to our learning process, Pegler-Gordon also pointed out that we should be careful about the way we consume them; we should not only pay close attention to an image's production and circulation, but also to the responses of the image's audience, for example. In most cases, this information cannot be learned from the image itself, and supplementary material is needed.

"With anything history-related, and I think this a good practice to have with most things, do check the source!" Jefferies said. "All good and reputable accounts will refer to the catalog number of the archives, museum or such, about where something is taken from. We're in an age of photo editing software which is improving all the time but if a catalog number is provided, you can check the original content."