AbeBooks, and it was mailed out from Germany (gotta love AbeBooks). Unfortunately, when you're buying a second-hand book online, you're buying a pig in a poke; there's no telling in advance what kind of shape it's in. The vendor's comment of "Condition: good" might mean almost anything. More than once I've been disappointed at all the scribblings and underlinings and highlightings in the book, and this one is no exception.
However, you've got to say this for Germans: they're tidy scribblers. This book is marked all over, but all the underlining has been done with a ruler. So at least, we've got precision scribblings here. It amuses me.
Incidentally, don't ever let me catch you scribbling in library books. The university library books I've got out right now are, in a lot of cases, a right mess. What is it with uni students? I don't care if you do it with a ruler or while holding the pen between your toes, marking up a library book is vandalism.
Life, the Universe, and Scribblings in Books. Enough with the rant, and on to reading Lüthi.