Казимир Валишевский - широко известный ученый: историк, экономист, социолог. Его сочинения выдержали несколько десятков переизданий и давно завоевали признание читателей. Несмотря на то, что некоторые оценки и выводы Валишевского сегодня могут показаться спорными, его повествование о Смутном времени и по сей день остается непревзойденным по количеству малоизвестного фактического материала и психологической достоверности портретов героев. (современная редакция текста - О. Колесников)
Kazimierz Klemens Waliszewski (1849–1935) was a Polish author of history, who studied in Warsaw and Paris, and wrote primarily about Russian history.
Born in Poland, but a long resident in France, Waliszewski wrote a detailed, scholarly works covering nearly three centuries of Russian history: from Ivan the Terrible to the end of the nineteenth century. He began research in 1870, and devoted over thirty years of work in libraries and archives in Paris, London, Berlin, Vienna, and Saint Petersburg. Several of his works written in French were translated into other languages. Waliszewski, also researched Polish history, and his book, Poland, the Unknown, offers a defence of the country's history against hostile Russian and German interpretations.
As a man of letters, Waliszewski expressed his intention to introduce Joseph Conrad to the Polish public in 1903, after the two had exchanged a number of letters.