I bought this book several years ago and it was too advanced for me to get much out of at the time, I set it aside and dismissed it. Picking it up again now I am finding Takagi's discourse eminently followable and his points cogent.
The title is misleading -- this book is all about forcing moves. Takagi's advice could be summed up as "don't make forcing moves just because you can; make forcing moves when you can use them to gain some benefit in a situation". This message is reinforced with plenty of examples.
The last few are selected from the "classical" Japanese period, including games by Shuwa, Dosaku, Shuei and Shusaku. It's cool how the brilliant moves in these old games still shine brightly.