Writing style.

[Frank]

I'm a huge fan of Mr. Heinlein's work but am finding the first three chapters of this book quite weird so far.

It seems the book isn't playing it straight and often changes in the first chapter. In the second it feels like almost no one is acting as one would expect and then the third is really odd.

Is there something I'm missing? Is there a specific style here that I can't grasp or is the book a bit off the wall?