Investing includes many aspects such as scouting for ideas, screening them, research (which calls for scuttlebutt, or speaking to various stakeholders of a company), valuation, portfolio allocation, and efficient execution of trades (buying and selling). Most investment-related writing is devoted to screening, research and the valuation part of investing — aspects that are much more objective and scientific in nature. On the other hand, portfolio allocation and execution, especially selling, involve much more subjectivity. Lesser material is available on the art of selling. Even media discussions focus more on research and buying. Experts offer buying tips but rarely speak about