Nature-based solutions (NBS) are recognised as contributing to international climate and biodiversity goals as well as solving other major societal challenges. Still, there are barriers to using NBS in the Nordic countries. Well-designed policies and targeted policy instruments are needed to accelerate the uptake of NBS. The A-DVICE project has developed an online handbook featuring advice for mainstreaming the use of NBS through policies by exploring potential opportunities and examples in the Nordic countries. The project is part of the Nordic Council of Ministers' programme on NBS. The handbook is hosted online, at www.nbspolicy.org. This TemaNord report contains a compilation of its main content.