Advances in Temperate Phyconomy: Algal Harvest and Cultivation in Globally Distributed Temperate Waters Part I , was published Jan. 2026. Part II provides a compilation of 23 additional chapters , by leaders in multiple, phyconomic aspects of temperate and cold-water production of algal biomass. These chapters encompass a wide spectrum of issues related to the management of biodiversity and biosecurity, wild harvesting and cultivation, cropping efficiencies and maintenance, socio-economics and value-addition to temperate algae. Global lessons can be learned from the intensive and extensive production and utilisation of selected algal biomass, produced by a variety of open water and on land systems. Readers benefit from the shared experiences and detailed comparisons between phyconomic advances in selected examples of micro and macroalgal genomics, bio-banking and intensive grow-out scenarios and sustainable valorisation of the biomass. The keys to the future, are lessons from the past! Indubitably all 52 chapters in Advances in Temperate Phyconomy Parts I and II are inseparable companions. Individually and collectively, they have something for everyone and will serve as a rich reference and compendium for a number of years to come. The books will be of benefit to those interested in applied phycology: students, academics, practitioners, and regulators alike. Pick up these tomes and read often; indulge you inner phyconomist! We sincerely hope you enjoy the diversity of information held within the contents and benefit greatly from reading both books and learning as much as we have from being the co-editors of this exciting project, with the further distinct privilege of making this information available globally.