Specifications
| Publisher | Solis Press |
| ISBN 13 | 9781910146323 |
| ISBN 10 | 1910146323 |
| Author | Graham Wallas |
| Language | English |
| Book Description | "The first in time I shall call Preparation, the stage during which the problem was 'investigated ... in all directions'; the second is the stage during which he was not consciously thinking about the problem, which I shall call Incubation; |
| Publication Date | 1 March 2018 |
| Number of Pages | 204 pages |
The Art of Thought
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