Books I recommend
Anatomy for the Artist by Sarah Simblet, DK Publishing (2001), ISBN: 9780751334418
The Natural Way to Draw: A Working Plan for Art Study by Kimon Nicolaides, Souvenir Press Ltd (2011), ISBN: 9780285638389
Drawing on the Right Side of the Brain by Betty Edwards, Tarcher; 4th Ed. (2012), ISBN: 9781585429202
Drawing the Nude by Thomas Weinc, A & C Black Publishers Ltd (2011), ISBN: 9781408134528
Drawing Perspective by Gilles Ronin, A & C Black Publishers Ltd (2011), ISBN: 9781408134498
The Creative License: Giving Yourself Permission to be the Artist You Truly Are by Danny Gregory, Hyperion (2006), ISBN: 9781401307929
Leonardo da Vinci, 1452-1519: Sketches and Drawings by Frank Zollner and Johannes Nathan, Taschen; 1st Ed. (2006), ISBN: 978-0681165861
The Complete Guide to Drawing & Illustration by Peter Gray, Arcturus/ Capella (2007), ISBN: 9781841934341
Arte - Grande Enciclopédia da Pré-História à Época Contemporânea (Portuguese) byAndrew Graham-Dixon, Civilização Editora (2009), ISBN: 9789895507368
The Art of Urban Sketching: Drawing On Location Around The World by Gabriel Campanario, Quarry (2012), ISBN: 9781592537259
The Urban Sketching Handbook: Architecture and Cityscapes by Gabriel Campanario, Quarry (2014), ISBN: 9781592539611
The Urban Sketching Handbook: People in Motion by Gabriel Campanario, Quarry (2015), ISBN: 9781592539628
The Urban Sketcher: Techniques for Seeing and Drawing on Location by Marc Taro Holmes, North Light Books (2014), ISBN: 9781440334719
Sketch!: The Non-Artist's Guide to Inspiration, Technique, and Drawing Daily Life by France Belleville-Van Stone, Watson-Guptill Publications (2015), ISBN: 9780385346092
Diário de Viagem Em Lisboa - Lisbon Sketchbook: Seven Hills, Seven Sketchers (Portuguese) by Eduardo Salavisa, Quimera; 1st Ed. (2010), ISBN: 9789725892084
Diários de Viagem - Desenhos do Quotidiano (Portuguese) by Eduardo Salavisa, Quimera; 1st Ed. (2008), ISBN: 9789725891889
Diários de Viagem 2: Desenhadores-Viajantes (Portuguese) by Eduardo Salavisa, Quimera; 1st Ed. (2014), ISBN: 9789725892497
always under construction ...