From Project 1999 Wiki
Tradeskills are one of the many activities available to adventurers of Norrath. Tradeskills can create special items for personal use or for profit by selling the results to other players. While some crafts are available only to specific races, such as the tinkering of the Gnomes, players can in general reach a skill level of 200 in many different tradeskills. Reaching higher and higher level of mastery of any particular tradeskill becomes more and more difficult, and only the dedicated few will be able to call themselves Grandmaster of a craft. Various tomes can be found throughout Norrath, and deciphering them will give clues left by previous generations of masters. For the less patient, herein one will find all the known recipes and details for each of the available tradeskills.