Postgresql database administration volume 1
PostgreSQL, The Big, The Fast and The Ugly
PostgreSQL, the big the fast and the (NOSQL on) Acid
Postgresql dba volume 1
Streaming replication
Life on a_rollercoaster
The ninja elephant, scaling the analytics database in Transwerwise
Don't panic! - Postgres introduction
Pg big fast ugly acid
PostgreSql query planning and tuning
a look at the postgresql engine
Backup recovery with PostgreSQL
PostgreSQL - backup and recovery with large databases
The hitchhiker's guide to PostgreSQL