"Learning Oracle Database 11g by Lewis Cunnigham" - 2012

This is a good breezy introduction to Oracle 11g database for anyone who wants to get familiar with whats/hows of databases concepts. The presenter has touched through all important aspects, so it was very useful for me. I've intentionally skipped 3 chapters, first "Database security", "Very Large Databases" and "PL/SQL" , considering the priorities. This is a good stepping stone for Oracle Database performance tuning concepts.