Cartilage is still a troublesome tissue even though the last decades there has been an enormous development in the way we treat cartilage lesions and osteoarthritis. Several books and numerous papers on different methods of how to repair cartilage have been published. Today we are in the era of internet. Patients are quickly informed about the available treatment alternatives via the web and more and more the medical professionals make use of internet to gather information rather than buying books. Publishing is in a new situation with most of medical journals existing also as e-journals and with possible fast downloads of manuscripts when needed. ICRS being a society with responsibility in educating about cartilage problems has now with publisher CIC Edizioni Internazionali produced an eBook on cartilage repair, a book that is possible to be up-dated at certain intervals and may be used on standard computers, e-book readers and smart phones accessible via fast app-systems. The ebook contains Chapters of how to evaluate the cartilage appearance, how to treat cartilage injuries conservatively to the wide variety of operative treatment alternatives available. Besides a focus on cartilage traumatic lesions, also Chapters on OCD, OA and meniscal lesions are included.