technicalities of Jacob's book

[simplex]

Just finished rereading Jacob's book. I was wondering how some technical details are:
- what latex styles were used?

- how are the figures on p. 84 and 88 are made (with which program)?
I am asking this because I'm trying to make such figures sometimes myself.

[jacob]

Here you go. I presume you know how to read this
\documentclass{book}
\usepackage[size=novel,gutter=0.62in,bottom=0.6in,top=0.6in]{createspace}
\usepackage{hyperlatex}
\usepackage{makeidx}
\usepackage{graphicx}
\usepackage{verbatim}
\usepackage{amsmath}
\usepackage{setspace}
\usepackage{fancyhdr}
The pictograms were made with a Mac program called OmniGraffle. The figures were made with a java program and gnuplot.