Focus: The Art of Clear Thinking
| Publisher | Mercier Press |
| Copyright Holder | Valerie Pierce |
| Copyright Holder (Illustrations) | Alan Clarke |
| Format | Paperback |
| Language | English |
| Location | Cork, Ireland |
| Copyright | 2014 |
| ISBN | 9781781172049 |
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| Publisher | Mercier Press |
| Copyright Holder | Valerie Pierce |
| Copyright Holder (Illustrations) | Alan Clarke |
| Format | Paperback |
| Language | English |
| Location | Cork, Ireland |
| Copyright | 2014 |
| ISBN | 9781781172049 |