Katsenelson published a book called The Little Book of Sideways Markets: How to Make Money in Markets that Go Nowhere (Little Books. Big Profits).
He is of the opinion that the stock market will go sideways for the next decade, extending its historical pattern of a short bull market followed by a long sideways market that on average lasts for 17 years.
In addition, he mentioned he likes L-3 Communications (LLL) and Medtronics (MDT).
Katsenelson is a long time columnist for GuruFocus, you can read his articles here.