Hannah Beachler, a production designer, combined the Nigerian language Nsibidi with a more contemporary spin inspired by her time working with acclaimed director Ryan Coogler on Black Panther. The project took her a whopping six months, a process that would’ve taken much longer had she not created two Wakandan bibles earlier in the film’s production. Marvel, impressed by her diligence, commitment, and skill, hired her shortly after this. For her work, she definitely deserves that gig (and many more).
Article source: https://www.cinemablend.com/news/2476122/black-panthers-chadwick-boseman-shares-adorable-fan-letter-written-in-wakandan