[3] Between 1910 and 1916, he was the director of special collections at the National Library and also served as editor of numerous magazines, including the children's publication Veselushka.

Pelin's literary works—poems, short stories and novels—recreated the peasantry and countryside atmosphere of the post-liberation Bulgaria.

A genuine country realism, with descriptions full of light and color, classify his works.

Pelin published the first book of fairytales in verse in Bulgarian; many of his works were written for children.

After the War, he managed to escape being blacklisted as a forbidden author by the Communist government of the People's Republic of Bulgaria.

The regime chose to consider his works as those of a realistic, critical author, а precursor of Socialist Realism who, although not having correctly seized the true nature of the Bourgeois state, knew how to tell about the life of the working class and individual revolt of exploited peasants.