With the debate on Scotland's future entering "referendum year", the "yes" and "no" sides are intensifying their campaigns.
But what are their messages and how are they being viewed, not only by each other, but by experts, commentators and academics?
Throughout the coming months, the BBC news website will be picking out statements from both sides of the debate and asking a panel of experts to analyse the claims.
Here, we look at some of the key messages in the UK government's series of papers arguing for the Union.