Assembler & ZX Spectrum volume 1
This book is a new testament of the holy bible of ZX Spectrum's assembler. In release time it helped many Spectrum programmers in hard beginnings. For this reason it has special place in my Speccy library and it was first book which I planed convert to PDF. Unexpectedly I made second volume first. Namely this book was printed by Desktop (Czechoslovak ZX Spectrum text editor) and I had to create fonts for PC in accordance with Desktop fonts to keep original look. I created fonts very slowly therefore work took long time.
This way I thanks to Lukáš Macura for OCR, Peter Gerža alias Chip for help with fonts and Sweet for error correction.