In 1928/1929 Alan Gardiner published an overview of hieroglyphs, Gardiner's sign list, the basic modern standard. It describes 763 signs in 26 categories (A–Z, roughly). Georg Möller compiled more extensive lists, organized by historical epoch (published posthumously in 1927 and 1936).
In Unicode, the block Egyptian Hieroglyphs (2009) includes 1071 signs, organization based on Gardiner's list. As of 2016, there is a proposal by Michael Everson to extend the Unicode standard to comprise Möller's list.
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