Demon Thief is a book in Darren Shan's "Demonata" series.
 Though it is the second book in the series, it is a prequel to "Lord Loss", the first book in the series.
 The protagonist is also different from that of the first book.
 The narrator here is a new character called Kernel Fleck, as opposed to Grubbs Grady, the protagonist of the first book.
 Demon Thief takes place about thirty years before "Lord Loss" so most of the characters from the first book did not appear, though a few did.
 It was also actually the sixth book of the Demonata to be written, although it was the second released.
Murat Gülsoy (born 1967) is a Turkish writer.
 He started his literary career as a publisher and a writer of the bimonthly magazine "Hayalet Gemi" (Ghost Ship) in 1992.
 His works explore the metafictive potential of postmodern self-consciousness with ‘page turning’ plots.
 He also produced interactive hypertext works on internet exploring new ways of narrative.
 Gülsoy has published 18 books in Turkey so far.
 Besides short stories, he has eight novels addressing modern masters Kafka, Borges, Eco, Laurence Sterne, Fowles and Orhan Pamuk.
 He is the recipient of some of the most prestigious national literary awards.
 He conducts creative writing workshops since 2004.
 Besides being a writer, he is also a professor with Bogazici University at Institute of Biomedical Engineering.
 He is the head of the editorial board of Bogazici University Press and director of Bogazici University Nazım Hikmet Culture and Art Research Center.
 "Stehlen Sie dieses Buch" is his first book to be translated into German (Literaturca Verlag).
 His novels are published in English, Macedonian, Arabics, Bulgarian, Albanian and Chinese.
 His 2000 Sait Faik Award-winning book "Bu Kitabı Çalın" (Steal This Book) ironically "borrows" (or steals) its name from Abbie Hoffman's 1971 book "Steal This Book" and it is referred in the book as a postmodern parody.
Come in at the Door is the first book in Alabama author William March’s “Pearl County” collection of novels and short fiction.
 It is an example of the Southern Gothic genre.
 Following the success of March’s first novel, "Company K", about World War I, the author began to explore his own childhood in south Alabama in his fiction.
 "Come in at the Door" is set in the three towns of Hodgetown, Reedyville, and Baycity, the latter offering a fictionalized vision of Mobile, Alabama.
 The book was first published in 1934 by Smith & Haas in New York and republished by the University of Alabama Press in 2015.
 The other novels in the series are "The Tallons" and "The Looking-Glass".
Gary Zukav (born October 17, 1942) is an American spiritual teacher and the author of four consecutive New York Times Best Sellers. Beginning in 1998, he appeared more than 30 times on "The Oprah Winfrey Show" to discuss transformation in human consciousness concepts presented in his book "The Seat of the Soul".
 His first book, "The Dancing Wu Li Masters" (1979), won a U.S. National Book Award.
First Book is a nonprofit organization founded in 1992.
 There are two parts to the organization, their book bank and their retail bookstore.
 The First Book National Book Bank takes books donated by publishers and distributes them to churches, schools and organizations serving children with special needs.
 First Book Marketplace allows qualified subscribers from low-income families or disadvantaged schools to buy books at a discount.
Stig Riemmbe Gaelok is born July 7, 1961 in Divtasvuodna / Tysfjord.
 He is an Sáme author, who writes his books in Lule Sáme language (julevsámegiella) and Norwegian language (norsk).
 His first book, the poetry collection "O, Oarjjevuodna", which was published in 1983, was the first collection of poems ever in Lule Sáme language, and also the first book in Lule Sáme language since ´s book "Jåhttee saamee viessom", which was published 46 years earlier, in 1937, and was the first book ever written of a Lule Sáme in Lule Sáme language.
18 Poems is a book of poetry written by the Welsh poet Dylan Thomas, published in 1934 as the winner of a contest sponsored by "Sunday Referee".
 His first book, "18 Poems", introduced Thomas's new and distinctive style of poetry.
 This was characterised by tightly metered, rhyming verse and an impassioned tone.
 Written in his "womb- tomb period", the poems explore dark themes of love, death and birth, employing a rich combination of sexual connotations and religious symbolism.
 The lyricism and intensity of the poems in the book contrasted with the emotional restraint shown in the poetry of the successful modernist poets that worked as his contemporaries.
 The book received critical acclaim, but was not initially commercially successful.
The Dancing Wu Li Masters is a 1979 book by Gary Zukav, a popular science work exploring modern physics, and quantum phenomena in particular.
 It was awarded a 1980 U.S. National Book Award in category of Science.
 Although it explores empirical topics in modern physics research, "The Dancing Wu Li Masters" gained attention for leveraging metaphors taken from eastern spiritual movements, in particular the Huayen school of Buddhism with the monk Fazang's treatise on The Golden Lion, to explain quantum phenomena and has been regarded by some reviewers as a New Age work, although the book is mostly concerned with the work of pioneers in western physics down through the ages.
Censorship in Afghanistan is a book by Hazara poet and journalist Kamran Mir Hazar.
 The book is written in the Dari language, and is the first book to explore the systematic suppression of free speech in Afghanistan that has been a feature of its ruling authorities for hundreds of years.
 Norwegian publisher IP Plans has published this book.
Kirsten Miller (born 1973) is an American novelist and the creator of the Kiki Strike book series.
 Her first book in the series, "Kiki Strike: Inside the Shadow City", came out in 2006.
 Her second book in the series, "The Empress's Tomb", came out in October 2007.
 The series chronicles the adventures of Kiki Strike, Ananka Fishbein and their friends in New York City.
 In 2001, the front lawn of a Manhattan nursing home collapsed to reveal an underground room, giving Kirsten the idea for the first book, set in the underground tunnels and rooms beneath the city.
 She created Kiki Strike and the Irregulars (named after Sherlock Holmes' Baker Street Irregulars) to explore these secret passageways.

Question: What did the first book of Gary Zukav explore ?
Answer: empirical topics in modern physics research