At the time when the work was published, the struggle for socialism was faced with serious issues.

The imperialist reactionaries were trying to break the faith in socialism among peoples, talking about the "end of socialism" over the situation that socialism collapsed in some countries.

The Chairman authored the said work to give confidence in socialism to the world progressives aspiring after socialism. The work comprehensively clarifies the absolute superiority of socialism over capitalism, the limitations of the previous socialist theory, the scientific accuracy of Juche theory on socialism and the invincibility of the Korean-style socialism centered on the masses.

As soon as the work was released, it aroused a great sensation as it proves the scientific accuracy ant truth of socialism and the inevitability of its victory on the basis of the man-centered philosophical principle and Juche-oriented socio-historical principle.

A large number of political parties, organizations and personages of the world issued statements and mass media gave wide publicity to the work, describing the work as "a great revolutionary theory of the present times declaring the doom of capitalism and the victory of socialism" and "the second communist manifesto".

Today, the world progressives regard the great Kimilsungism-Kimjongilism as the banner of their victorious advance.

The work "Socialism Is a Science" will shine forever with a great viability as it is an encyclopedia of the revolution inspiring the victorious advance of socialism, an ideal and aspiration of the humankind.