At the risk of being somewhat off-topic (sorry but couldn't find any conclusive info on this) ...
What authoring software is recommended to create rich, illustrated books in a similar style as many of the Pen&Paper supplements published by companies like Wizards of the Coast? I'm looking for a software to create layout and design in a similar style, incl. illustrations, tables, quotes, info boxes, etc.
Before you now point me at the usual suspects such as Adobe InDesign, I'm asking this question exactly to find out whether any of the big publishing tools fit the requirement better than others.