"Tiempo que perder" (Time to Lose) is a science fiction novel written by the Spanish blogger Javier Malonda and published online on his webpage in 2005. As the name could suggest, it involves time travel... with a few surprises. In the preface the author encourages copying and distributing the book and, moreover, I got explicit permission from him to post it here.

I created the PDF from the original source text, with pdflatex. The book is nicely formatted and typeset, with table of contents, etc. It has minimal margins, and 9pt font size ("-ss" stands for small screen), it may be too small for some people, but the source files are available on request if someone wants to try different settings.

I also added a "chapterbar" to the top of every page. It has two bars marking the progress on the whole book and on the current chapter, which I hope are unobtrusive and helpful enough.

Any kind of feedback is welcome.