He used to accompany his father to the el-Muharraq monastery to learn Coptic with the monks.
Labib learned Egyptian hieroglyphs from the French Egyptologists and was the second modern Egyptian to learn this ancient language (the first was Ahmad Kamal and Ahmad Kamal is of Turkish origin).
He also pioneered educational books for children named ⲁϧⲱⲙⲫⲁⲧ (Akhomphat).
[1] Claudius Labib was also responsible for editing a series of religious texts used by the Coptic Orthodox Church.
The works were published at Cairo as follows: Katamãrus, 1900–02; Euchologion, 1904; Funeral Service, 1905.