Actually, I'm not sure they're at all good...but they fall in the category of "I have good memories of reading this as a child, tracked it down, and will now recommend it to people".
If that's not a ringing endorsement, I don't know what is.
Here's a ringing endorsement, though, courtesy of my good friend and serial commentator with a crush on the captcha - you may know her as Lannis): The Book Depository. Free shipping, anywhere in the world they ship to.
Free.
Free!
I'm calming down.


I'm going to go out on a shaky limb here and say that the quality of the writing in any of them is so beside the point that the point is allowed to wear an "I'm With Stupid" t-shirt and you still have to buy the books.

You can't get these out of the library. Even if you could, some dumb kid (someone else's, obviously), will have taken all the stuff out, messed it up, and put it back in the wrong envelopes.
My only problem is deciding when Miss will be old enough to read them without wrecking them.
I figure I'll be safe when she's around twenty-five.