Best beginner orchid book?

[Paul]

The father of a buddy of mine is interested in orchids. While there is, of course, lots of material on the Net, his dad's connection is SOOO slow that Internet searches are simply not practical.

With that in mind, I figured he could likely checkout books from his local library (and the library could always bring a book in from another branch if necessary). So what would you recommend as a good book for beginners?

His dad will be growing indoors. Most likely just window sill growing at this time. Phals seem to be the primary group of interest.