Re the Personal Power books.
COOL! NIce find.
I do so much reading on screen, that I actualy prefer paper most of the time. (I only glanced at ChunLi's ebook, and waited for the paperback to arrive)
I think it is legal, ethical, and common, to sell material that is in the public domain. How many publishers are releasing classics all the time! Some companies use public domain stuff as "bonus" or giveaways to increase their market exposure or profile.
There is also a posibility that LSC negotiated an agreement witht he person who last held the copyright. I dont know, but I suppose you could ask them.
regardless, enjoy your books!
vitaman