Zoran ,Thanks very much, I have to look for that app,
of the sight to size method, I didn't understand where to hang the plate, on the wall in front of me, in front of me or on the wall to the side. and whoever draws from life, instead the person, or the still life, must stand facing me, and just a little to my right. also for the bargue sheet, then it must be attached to the wall in front of me. a little to the right (right, because, I draw with the right hand, in short, I have to place it side by side). I had a doubt because years ago I had bought DVDs which he explained this method, but you couldn't see where the subject or person was hanging, it seemed far away, very far to the right, at an angle. to measure I had taken some old hooks for working magic, but perhaps they were a little crooked, perhaps I had also taken a straight one, in any case then I had bought a lead and attached rope to it, then I didn't practice because 5 years ago I hit My back is against the wall and I feel tired in my dominant arm, even though after some time I had it checked and there seemed to be nothing, after a year however the discomfort has decreased and I have started drawing with it again. using pencils and more comfortable positions. regarding sight to size I signed up for a nice newsletter, Darren from SightSize.com. in the 9 years in which I have been drawing I have been using a table easel, A3, on analogue format I often used A4 or A5, for sight to size I sometimes put a book or sheet of paper next to it, but mostly I had the computer monitor in front of me and I could see on the monitor the reference, sometimes, often I try to draw, with the construction, the circle, as Loomis explained in the book or tutorial. however, the thing that I have always found very difficult, impossible in drawing, to do a good shading, shading is fundamental but really difficult and cleaning is also needed when preparing pencils as well as technique. 2 years ago the computer broke and I bought an iPad, I use an easel table with iPad on it, with iPad, I used sight to size more (sometimes I try without or I reduce or enlarge, many drawings instead with sight to size control based on height, or I do a mix with construction, digital I often try to use it as with paper but with these changes, checking more measurements), dividing the screen in 2, Bargue tried a couple of times, a newsletter had sent me a couple of Bargue tables with high dedication for printing, and I had found the book online, I bought another book, in addition to some paperbacks I bought used (I made a mistake because they reprinted it later and it is a large format book, my copy gives me allergies so I didn't copy the drawings but read the text and photographed part of it on its hatching) ) Pencil book, by Calle, her drawings are incredible, I haven't tried to copy them. I have a couple of digital attempts that I made on bargue but I deleted them from the iPad, saved on disk but without a name, but perhaps I have 2 on my phone and I can find them there. thank you for the help you have already given me and for the inspiration, sorry for this long answer.