Ziegler, Mark: - Michael Dahl (who has written under the name Mark Zielger) is the author of more than 200 books for children and young adults. He has won the AEP Distinguished Achievement Award three times for his non-fiction. His Finnegan Zwake mystery series was shortlisted twice by the Anthony and Agatha awards. He has also written the Library of Doom series and the Dragonblood books. He is a featured speaker at conferences around the country on graphic novels and high-interest books for boys.