Both authors were the founders of NEPTUNES Productions. Read the history about the beginning of the book and NEPTUNES written by Mark de Rover:
Well, I founded Neptunes Software in about 1985 / 1986. I mostly
built small applications and games. Games like "Galgje", "The
Wall", "Zombo" and more.
I got this book from Arjan in 2002 and I decided to put it for download on my site. The problem is I can't understand any Dutch and I discussed this problem with Jeroen F. J. Laros/NL who is well known to us by his excellent programs and utilities which he wrote for this site for free download. To cut a long story short, the translation of this book having about 240 pages A4 !! is in progress by Jeroen's kindly help. In the meantime half of the book is translated. I put his translation here step by step and when he has finished his great work , I put a Dutch and an English PDF version of this book for download on my site. This will take a while - be patient. Take a look at these pages time by time and see what's new.
Only I and Jeroen got the exclusive permission to publish and translate the book. Read the book now beginning on the next page.