Java in a Nutshell
David Flanagan & Benjamin J. Evans
Real-Time Phoenix
Stephen Bussey
Database Reliability Engineering
Laine Campbell & Charity Majors
Cloud Application Architecture Patterns
Joseph Yoder & Kyle Brown & Bobby Woolf
Mastering Spark with R
Javier Luraschi & Kevin Kuo & Edgar Ruiz
Spark: The Definitive Guide
Matei Zaharia & Bill Chambers