It is not written on the cover "Only genuine review and Expanded Edition by Alph. SCHOTTE" to be the true SCHOTTE Fréres edition of 1923-1929. Hanon This is only a miserable reduction of original Hanon. The surface of each sheet was reduced by 26.5 x 33.5 cm to 22.5 x 30 cm, but most important: the surface thereof music rose from 24 x 27 cm to 20 x 23 cm in the new collection reducing readability 30% Thus the musical signs have a reduced surface area of 30% Imagine the discomfort and brought reading to the reader. It is crying despair when both editions has (Please equip binoculars). To be useful in the professional editor profession, if the format had to be reduced to A4 (it is not clear why, if not to use photocopiers or standard paper!) All the measures should have been rewritten (or rather what photomontées seems possible with modern software) This is just one example of the impoverishment of music publishing. It is the same for all current editions of reproductions, often not directly exploitable. (La belle Hélène, La Traviata, La Norma, The Puritans) Exception: GISELLE ESCHIG editions of respects the dimensions of musical signs binding but loose very quickly. There should be a label for music publishing. (Readability). It is not for nothing that all of the old formats are as large collections! .