Apparently, at some point, they decided to discontinue publishing the collection. :-(
Well, welcome to 2012! Kim, along with the help of Verlene Schermer of Karmalu Productions, has re-printed the collection.
The arrangements have been edited and re-notated, minimizing the page turns from the original edition. Helpful chord symbols are provided, and it has a nice spiral binding.
You can find the book at the usual harp music retailers, for only $ 20.00!
Well worth it. The level is mostly appropriate for mid to later intermediate players and beyond.
You really cannot go wrong with a book of music from Kim Robertson!