In this segment from Tuesday's Investor Beat, Motley Fool analysts Morgan Housel and Mike Olsen each discuss one stock popping up on their radar this week. Mike looks at the curiosity that is (NASDAQ:AMZN), the behemoth that defies all prediction of how big it can one day get. Meanwhile, Morgan points out that at just around 1.3 times book value, Berkshire Hathaway (NYSE:BRK-B) is one of the last places investors can go for value on the market today.

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Alison Southwick and Morgan Housel have no position in any stocks mentioned. Michael Olsen, CFA, owns shares of Berkshire Hathaway.The Motley Fool recommends and owns shares of and Berkshire Hathaway. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.