Nahimana Onatha in Germany shares this photo of her dog, Kulcsos Lujza Barbar, napping on a chair that's not quite big enough for him.
This photo showcases the shape of the Kuvasz head:
“Although the whole dog is pleasing and well balanced, the most attractive part is the head. This is the Kuvasz’ most distinctive feature.”
From: Pál Sárkány and Imre Ócsag, Hungarian Dog Breeds, Budapest, Hungary: Corvina Kiadó, 1977, 2nd ed. 1986, p. 101.
"The Kuvasz' head is typically wedge-shaped....The Kuvasz can mainly be distinguished from other breeds by his head shape."
From: FCI-Standard No. 54