This is the second CATS Conference Proceedings with papers from the international conference: Technology & Practice: Studying 18th Century Paintings & Art on Paper. The conference was organised by CATS in collaboration with Helsinki Metropolia University of Applied Science in Helsinki, Finland; National museum in Stockholm, Sweden, and University of Oslo, Norway. The conference focused on artists techniques and materials, source research, conservation science, the history of science and technology, trade and pharmacy during the 18th century. Speakers explored tradition and changes in artistic practices in the light of the establishment of a series of national Art Academies in Europe throughout the century. Papers include topics such as workshop practice and materials, art historical and technical approaches to documentary evidence and technical examination and the analysis of paintings and drawings. Also issues of trade, supply and questions concerning the demand for materials for diverse artistic expressions are analysed and discussed. Contents: ForewordDiscipline and wonder: the 18th-century art academy and the invention of the artist as a free practitionerMikkel BoghThe effect of Prussian blue on the technique of the Danish court painters Hendrik Krock and Benoit le CoffreLoa Ludvigsen, Mikala Bagge and Vibeke RaskBreaking new ground: investigating Pellegrini s use of ground in the Golden Room of the Mauritshuis Carol Pottasch, Susan Smelt and Ralph HaswellLiotard s pastels: techniques of an 18th-century pastellistLeila Sauvage and Cecile GombaudAn investigation of the painting technique in portraits by Jens JuelTine Louise Slotsgaard72 florin for colours, white and glue: the Tiepolos, the Veninos and WurzburgAndreas Burmester and Stefanie CorrellThe coarse painter and his position in 17th- and 18th-century Dutch decorative paintingPiet Bakker, Margriet van Eikema Hommes and Katrien KeuneA painted chamber in Beverwijk by Johannes Luberti Augustini: novel insights into the working methods and painting practices in a painted wall-hanging factoryIge Verslype, Johanneke Verhave, Susan Smelt, Katrien Keune, Hinke Sigmond and Margriet van Eikema HommesEighteenth-century practices in the art academies in Spain: the use of paper in prints and drawingsClara de la Pena McTigueNicolai Abildgaard: an 18th-century Danish artist and his paperIngelise Nielsen and Niels BorringSemi-mechanical transfer methods in Nicolai Abildgaard s drawingsNiels BorringCanvas supports in paintings by Nicolai Abildgaard: fabrics and formatsTroels Filtenborg 1st olio after Capivi: copaiba balsam in the paintings of Sir Joshua ReynoldsAlexandra Gent, Rachel Morrison and Nelly von AderkasFerdinand Bauer s Flora Graeca colour code Richard Mulholland"