The Queen's Indian: Detailed Explanation of an Important and Popular Chess Opening
Jouni Yrjölä is a grandmaster from Finland. He has won the Finnish Championship twice, and regards Sochi 1984, where he shared third place with the legendary Mikhail Tal, as his best tournament result. He was awarded his grandmaster title in 1990. Jussi Tella is also from Finland. He is an international master and an experienced chess trainer. They also wrote the Gambit bookAn Explosive Chess Opening Repertoire for Black.