Tiger has removed one game of the previous book's 4 example games and added three new for a total of six example games.
White usually plays Bd3 and 0-0 while Black usually plays ...Nf6 and ...0-0 and in this case Tiger then recommends a set-up for Black involving ...Nc6 supporting a subsequent ...e5 which gets good results.
White has the following plans:
A) White meets ...Nc6 with an early h2-h3 to prevent ...Bg4