Help needed OG11 Quant Explanation

Looks like nobody has responded yet because this is a touchy subject.

OG is not legally available in electronic format. If you see it in electronic format, you are viewing an illegally created copy - and, if you use it, you are breaking copyright law. BTG does not post illegally-obtained copies of materials, nor does it post pointers to sources of such information.

The book is pretty inexpensive; I recommend you buy a hard copy. (Though, FYI, I don't think the explanations in OG 11 are any better than those in OG10.)