For stocks, I strongly recommend reading The Intelligent Investor (Ben Graham). It is very readable and gives a excellent summary of value investing principles,

For stocks, I strongly recommend reading The Intelligent Investor (Ben Graham). It is very readable and gives a excellent summary of value investing principles, which is on of the safer stock strategies and generally provides decent returns. Reading the Berkshire Hathaway annual reports is also useful in how Buffett things about valuations.