For books with a serious personality, he could recommend From the Crosstalk and The Seal of the Gods. For books with a cheerful personality, he could recommend My Girlfriend Is The Drifter and Mr. Lu Chases His Wife All the Way. For interesting books, he could recommend The Great Wilderness's First Spit Emperor and Survival on Floating Island: My Philosopher's Book Knows All Things. For unknown new books, he could recommend Eldest Brother De Yun and I, the Sword Immortal, Have a Cheat. I hope you like my recommendation. Muah ~