set of modern book cover s with geometric gradient colors. very suitable for industrial business banners, flyers, brochures

poster abstract book template modern geometric cover gradient banner background design layout minimal graphic vector brochure set pattern trendy concept flyer colorful presentation color shape creative line business art texture element collection hipster backdrop geometry wallpaper flat card dynamic print futuristic simple style annual fluid elements memphis circle liquid designs colors suitable industrial banners flyers brochures posters