James Montier's emphasis is on how to keep behavioral biases from disrupting long-term value investing, not on how to exploit shorter-term emergent market behaviors that may derive from individual human biases.
James Montier's examples of "how some of the world's best investors have striven to develop investment processes that minimize their behavioral errors" are incomplete in a research sense, arguably more story-like than research-like.
In summary, The Little Book of Behavioral Investing is a broad survey of behavioral biases and countermeasures as related to financial markets, especially for value investors. The self-awareness espoused may be as important to successful investing as valuation methods.