!!! Black-and-white photogravure prints !!! Na řeku…! (1957) is a photographic book by the renowned Czech photographer Ladislav Sitenský, with accompanying text by Jindřich Pokorný. The volume presents a striking series of photogravure (intaglio) prints depicting the lives of boaters and river travelers on Czech rivers. The photographs, rendered in deep, richly textured tones, are complemented by concise commentary that evokes the atmosphere of untouched nature, waterborne adventures, and the rhythm of life on the river. Published in hardcover by Sportovní a turistické nakladatelství in Prague, this title is rarely found on the market, making it a coveted collectible for enthusiasts of postwar Czech photography and fine press photographic books.