The fact that bestsellers relate much to the societal trends of the eras in which they are published has always been unchallengeable. History itself has proved it over the years that books, which specially focus on social issues, consistently make it on the "bestseller" list. Although these days bestsellers are often criticized as culprits for degrading the sacred value of books by being a quantifying(how many are sold) tool, they are also commended as important evidence of our society's vitality thanks to their continual focus on the society's phenomena and people's corresponding conceptions. In Korean literature, it is interesting to note that during 1960s and 70s, a time when bestsellers became more common, readers read anthologies or poems that touched on the sensitive issues of the society to fulfil his or her own desire. As traditional romantic poems somewhat retreated, people started to move away from self-ego-driven poems and turn to social-ego-driven anthologies. People took up anthologies containing non-romantic poems that talked about society's problems, to satisfy their social and practical ego. Such anthologies were, to name a few, Kim Soo Young's 'Great Roots,' Shin Dong Yeop's 'Kum River,' Kim Ji Ha's 'Five Enemies' and 'Yellow Soil,' Yoon Dong Joo's 'The Sky, The Wind, The Stars and The Poem' became bestsellers of the period. The main cause of this radical change in people's tastes could be attributed to the continual occurrence of major historical events such as the Korean War, the 4ㆍ19 revolution, industrialization, and labor movements. Amidst these changes involving concepts of nationalism and ideology, people naturally felt the need to become socially and mentally aware. Hence, collegians and the general reading public turned to literature that could aid them in doing so, poems in particular. Such works, including those mentioned above, incited the "self-improvement motive" in readers by emphasizing a progressive way of life. Throughout the nation, people came to adopt a new, more active perspective; they strived to get more involved in society. The 1960s through 70s is a surely a notable period in Korean literature for it was a time when poems transformed their identities from "high-class literature" to "all-accessible, common literature" by becoming "bestsellers." This "bestseller" phenomenon clearly shows not only how poems helped readers' individual betterment, but also how much literature influences and moves society by giving directions the society needs to follow. Kim Soo Young of the 60s dramatically formed the face of "bestseller poetry" by gaining reputation and praise from new, middle-class readers. His reactive negativism in tone, illustration of how colloquial language becomes doubly powerful in poems, self-reflection in every line, and unfamiliar and irregular settings helped attract such numerous readers. He virtually changed the landscape of bestsellers. Poet Shin Dong Yeop of the same period, though his 'Kum River' is not at all an easy work to read, attracted many readers with its strong self-positiveness. Rather than falling into escapism, readers strived to overcome their war-stricken reality by searching out for strong, expressive poems. Consequently, both poets' works newly arose as bestsellers of the 1960s. During the next decade, with the growing nationwide strife for better education, the reading public widened its scope to include many lower-class citizens. The bestseller works themselves became more sophisticated; the concepts of populace, ideology, and activism no longer acted as colorful condiments to beautify bestsellers, but as crucial requisites in forming bestsellers. As these concepts arose in their significance, however, they also restricted readers by incorporating terms like minority, elite, and high-class. Kim Ji Ha's 'Five Enemies' gained praise for the stirring, inciting tone used to criticize corruption of politics. He also skillfully implied the traditional culture including Pan So Ri rhythm to underline the "Korean pride." The poet's long-enduring influence through to his/her 'Yellow Soil' was so great that it triggered numerous labor movements and popular movements. Yoon Dong Joo's 'The Sky, The Wind, The Stars and The Poem' is a perennial bestseller up to this day. The intelligent youth's delicate emotions and soul written line after line attracted countless readers of all eras to a self-reflective, contemplative reading. His work is particularly noteworthy in that he made it possible for readers of the 70s to easily experience self-reflection of the practical ego. To put it short, in the 1960s and 70s, the readers of bestsellers all commonly sought out for works that evaluated the society and its ways. Although radical changes in history laid the path, such phenomenon would not have been wholly possible had it not been for the newly-emerged, smart readers of the middle and lower class. The reading public altogether cleverly did their job of satisfying their practical egos through the imaginative and intellectual means exhibited in the bestseller poems. The poems did not simply become must-read bestsellers without reason. They helped satisfy the readers' desire to realize individual goals and to outwardly express their selves; the bestsellers sufficed practical reading pursuits and helped realize social egos.