Shiver is written by Maggie StiefvaterMaggie Stiefvater wrote The Raven KingThe Raven King is written by Maggie Stiefvater
[Human]: I like the book Shiver, what about you? [Assistant]: Yes, Shiver was written by Maggie Stiefvater and was released in 2009. [Human]: Didn't she write The Raven King too? Do you tend to read fiction too? 
Actually, J.K. Rowling wrote The Raven King. She also wrote Linger and Forever.