Complex sentence: He is known for his books "Dormir amb Winona Ryder", which won the 2007 and "The Supernatural Enhancements" (2014), his debut in the English language.
Split into simpler sentences: He is known for his books "Dormir amb Winona Ryder" and "The Supernatural Enhancements", the former of which won the 2007. His 2014 book "The Supernatural Enhancements" was his first work that has been published in the English language.