@mariapombo Interesting, your spanish Bible also uses the 2-column-system. It's very common. I'm glad I found one with continuous text layout a while ago though. It suits me better.
But I'm changing the topic here...
@mariapombo for studying, 2 columns is probably better. More room for notes or verses. Continuous text is great for continuous reading - a whole letter for example. You get the overall meaning a little easier.
That's what I figured.
@erdenpilger yes, great point!