Apple: Imagine this…

Imagine Art

Imagine you are a plastic artist.

Imagine you need to buy some new brushes.

Imagine that with the receipt there was also a small paper saying that by using these brushes, any painting you made could be offered free to anyone you wanted, but If you wanted to sell your painting you could only sell the painting through the brushes company that would require a cut in the sales price.

Imagine how you’d feel about that.

Now can someone explain me why any Book you make with iBooks Author software from Apple comes with this exact condition?