DMF Cantell Book by Sergiy S. Tkachenko of ArchyStudio.com is a free humanist sans serif with tall, open lettering and gently changing stroke widths. Its broad capitals feel steady, and the rounded lowercase forms soften the overall texture.
In publishing, it lends book covers and magazine features a composed, literary voice without looking historical. The same measured curves suit cultural branding and museum signage, linking those uses through lettering that feels formal but approachable.