Hi I'm David Guzmán - PixelOz and I have just finished writing a new completely free e-book about how to design paper models with computer software. It shows a lot of the software programs that can be used to do the job but it is based mainly on Blender 3D and an illustration program. It is 227 pages long and includes hundreds of color illustrations and images to help people understand the concepts of the e-book better. All the 3D images of the book were created with the open source program Blender and it was written entirely in another open source program which is Open Office Writer with some illustrations made with CorelDraw X3. I found while researching the subject and with my own experience that were many new paper model designers were having a we bit of trouble was not in some complex thing but in the basics of the subject and I decided to write something to shed some light on the subject and this e-book was the result of that. The zip file contains the e-book in PDF format, a few 3D Blender files that can help a bit with practice and an additional unfolding script to the one that Blender already includes that has other special capabilities written by a talented programmer named Čestmír Houška (Czestmyr). You can download the e-book from here together with other free stuff that I make like wallpapers, icons, etc.: PixelOz on deviantART Here in Deviantart hit the Browse Gallery button to see all my things. You can also download it here: http://www.mediafire.com/?sharekey=b...eada0a1ae8665a Maybe some of you remember that I was the guy that designed the yellow cartoonish Ford Hot Rod 32 - 33 paper model a while ago. If you were wondering what I was doing in the meantime it was this (apart from other personal or work related projects that I was doing). Writing the e-book took me a while but I decided to do it because I though that it was more important than just designing another paper model. It is the first time I write a book but I think that it can explain the concepts that I wanted to explain good enough to help new or even not so new designers a little. I really hope it does help. Best wishes to the paper model design community. I hope you paper model designers enjoy it.