Bobby Baldwin and SSI

[Chip753]

Hello. This is my first post in this section.
I would like to ask you something.

I read somewhere that Baldwin's section in SSI about LHE is not valid anymore.
Is it true?
Even if it is true that the structure of the game is changed about blinds is it true that this chapter is not good?

For example I read that Harman's chapter (that I have still not read) about LHE in SSII is great. Are there so many difference compare to Baldwin's work?

Thank you at all.