Warren Buffett is the world’s best known investor, but at the tender age of 94, he’s recently announced he’ll be stepping down as CEO of his investment vehicle, Berkshire Hathaway. In this Deep Dive by AJ Bell Money and Markets, Laith Khalaf and Russ Mould discuss Buffett’s investment strategy, and how everyday investors can apply it to their portfolio. Laith and Russ talk through some of the key investing principles of Warren Buffett, delving into whether he is really a value investor, and asking if Buffett is right when he says diversification is protection against ignorance. We also look at the importance of a buy and hold strategy and staying within your circle of competence. We’re joined by Keith Ashworth-Lord, manager of the Sanford DeLand Buffettology fund, to explain what Buffettology is, and how he applies Buffett’s principles to investing in the UK stock market. Laith and Russ discuss some more of Buffett’s investing tips, such as whether most people should buy a tracker fund, and if crypto really is ‘rat poison squared’.