The increase in independent travellers which was a consequence of the increase of use of private cars led to the need for specialized guidebooks, so that these travellers could visit museums, archaeological sites and historic city centres. With a guidebook in hand, tourists explored the cultural heritage of Greece enjoying a unique sense of freedom and discovery. Archaeological sites were the most difficult to "decipher", so there was a combined effort, both by the ministry of culture and by tour guides to prepare accurate and legible guides for the broader public. This guide, by Sonia di Neuhof, a well-known archaeologist and tour guide in the 1970s and 1980s, presents the archaeological site of ancient Corinth and its archaeological museum, located within the site. It was published by Apollon editions, which specialised in guide books and postcards in the same period, although later on it shifted to foreign-language book publishing and skyrocketed its sales. The guidebook includes maps, texts and a number of black-and-white cards depicting Corinthian vases, an important aspect of Archaic and early Classical artistic production of Corinth, a city which in the same period predominated in Mediterranean trade.