I don't know who gave him the information about those Japanese book titles for David Walliams' stories, but "Shogakukan" is actually the name of the publishing company. Someone messed up. As for the translated titles, well that is a prime example of why you never use online translators. They should be as follows : おばあちゃんは大どろぼう?! (Obaachan wa Oodorobou?!) "Grandma is a Master Thief?!" 世にもおそろしいフクロウおばさん (Yo ni mo Osoroshii Fukurou Obasan) "The World's Terrible Owl Aunty" or maybe "The Most Dreadful Owl Aunty"
Sir Michael CAINE has lost nothing about his charme and effect to people! 21:20 The story of his life! Priceless how he met his georgeus wife, last for over 50y now! Priceless!