1. Causation (http://www.amazon.co.uk/Causality-Reasoning-Inference-Judea-Pearl/dp/052189560X http://www.amazon.co.uk/Causality-Reasoning-Inference-Judea-...)

1. Causation (http://www.amazon.co.uk/Causality-Reasoning-Inference-Judea-Pearl/dp/052189560X http://www.amazon.co.uk/Causality-Reasoning-Inference-Judea-...) 2. The Boardman Tasker Omnibus (http://www.amazon.co.uk/Boardman-Tasker-Omnibus-Peter/dp/1898573859 http://www.amazon.co.uk/Boardman-Tasker-Omnibus-Peter/dp/189...)