11. But for mapmaking purposes this sort of deviation is usually too small to matter. 12. The sole remaining group, publishing, represented the core mapmaking business of the company. 13. The aerial perspective ostensibly improved mapmaking , especially when combined with the use of photography. 14. Using repeatable principles that underpin mapmaking , their map making techniques could be employed anywhere. 15. His son Rodrick assisted with the mapmaking . 16. In Connecticut's new 5th District, the legislative mapmaking made for an even start. 17. He also praised the mapmaking tools. 18. Muslim intellectuals would become experts in chemistry, optics, and mapmaking during the Abbasid Caliphate. 19. Whereas cartography is the art and science of mapmaking , cartographic design concerns the map user. 20. More than 20 years ago, Diego Perez tried working for a mapmaking company in San Cristobal.