He edited books about the origins and values of Christian Democracy: "Tolerance is the soul of Europe" – a collection of speeches, articles and interviews of Federal Chancellor Angela Merkel, Compilation and Translation Mr. Tonev, published jointly by the Foundation "Konrad Adenauer", in 2009.

The collection offers texts for the political rise of Angela Merkel and excerpts from its public statements in which she exposes their beliefs and values foundation of their activity as chancellor and president of the German Christian Democratic Union.

The book provides texts of personalities from different spheres of German public life essence and spiritual foundations of the social market economy for the beliefs and political activity of Ludwig Erhard.

[3] On 26 July 2016, the Bulgarian Democratic Union presented publicly the address "Honor and Justice" and announced the nomination of Mr. Tonev for President of the Republic.

His running mate, Andrey Andreev, is a musicologist who heads the Philharmonic Orchestra of Plovdiv, Bulgaria's second-largest city, and several other institutions.