Is Zhang's childhood calligraphy collectible?

Zhang Younian's calligraphy is very collectible. His calligraphy works have been exhibited in the whole country for many times and won prizes. Fine brushwork, small lattice and long scroll "Diamond Sutra" is collected in. The cursive scroll "Teacher's Watch" was collected by the University of Northern Kentucky. His elaborate works of cinnabar in small letters, The Diamond Sutra and Heart Sutra, have been collected by many temples, such as Yunyang Temple and Baiyun Temple, and are regarded as the treasures of the Tibetan Sutra Pavilion. Zhang Younian showed the charm of calligraphy art vividly and sublimated the connotation of calligraphy art to a new height.