When to Sell - funny about that, but I've got another great book on this topic "When to Sell" by Justin Mamis, 1999 edition so not sure if its still available. Worth having.
The basic underlying principle is that you sell when the stock no longer does what it is supposed to do; a simple/complex word - failure!
When a stock does not do what you expect it to do - sell it.
Talks about traders who concentrate on timing the sale as soon as stock is bought and the public who are most comfortable sitting on losses; selling conveys the possibility of being wrong twice 1. buying error, 2. might be wrong selling out, then the anxiety of seeing the stock go up. "So sit back comfortably and dream instead"
Mkt is a continuous auction, need to separate real possibilities from mere hopes - need to forecast from reality. Selling wrong trades quick means you are mentally and financially prepared to buy. That's an edge in itself.