Is Zhang Guofeng's calligraphy worth collecting?

Worth it. Zhang Guofeng's calligraphy is worth collecting, because Zhang Guofeng's calligraphy works have high artistic attainments. His calligraphy style is unique, with both the charm of the ancients and his own innovation. His brushwork is skillful and vivid, and his works have high artistic value. In addition, the number of Zhang Guofeng's calligraphy works is limited, especially his masterpieces, which are even more scarce. This scarcity makes his calligraphy works more precious and collectible.