Providing a web-based service featuring technology that enables users to manage the production and publication of electronic books (e-books) and related digital content and offer them for sale to the general public

'base':5 'book':20,23 'content':27 'digit':26 'e':22 'e-book':21 'electron':19 'enabl':10 'featur':7 'general':35 'manag':13 'offer':29 'product':15 'provid':1 'public':17,36 'relat':25 'sale':32 'servic':6 'technolog':8 'user':11 'web':4 'web-bas':3

Digital video, audio, and multimedia publishing services; Publishing of books, e-books, audio books, music and illustrations

'audio':3,14 'book':10,13,15 'digit':1 'e':12 'e-book':11 'illustr':18 'multimedia':5 'music':16 'publish':6,8 'servic':7 'video':2

ZBOOK

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