I am a bit of a sucker for books which promise to elucidate things mathematical. This is not because I am a mathematician, but because I am fascinated by the subject itself. I have been “caught” by promises in books that the the mathematics involved are “not difficult”, only to find that for my poor brain, they are! So their detailed maths contents end up not being read… None of this has stopped me being interested. Now, however, I have learned to read what I can, skim-read (even skip past) the rest, and hopefully thus managing to glean something from the book. Sometimes this works, but sometimes it doesn’t.
Heaton’s book is one of those that sits somewhere in the middle (for me) and I found it helpful (if not always easy to read). The intention here is to provide key concepts in mathematics, and Heaton provides the reader with thirteen chapters on just that. It is written in a way that should be basically accessible to the ordinary reader (though a slight tendency to prolixity can sometimes make this a little harder to grasp) and in general I think he does this pretty well.
Unfortunately, there are still situations when the mathematics “gets in the way” as it were. I would argue that maths is essentially about abstractions, and then about abstractions about these abstractions, and again, and again… For the ordinary reader, the jumps into higher abstractions can be difficult to comprehend. I would imagine that such readers would prefer that the writer just simply says something like “trust me, it is possible to do such abstractions and arrive at certain conclusions, such as…” I know I would. Instead the writers seem, at a certain point in their argument, to be unable to resist actually diving into the actual mathematical process, and the reader’s brain switches off. I feel that in many cases this is not necessary (but, of course, I may be wrong). So my default position takes over, and I skim-read through the esoteric symbols and complex logistics, then bravely read on, desperately trying to convince myself that I will not drown in my own ignorance…
My technique of ploughing on regardless seems to have worked for me with Heaton’s book. One may not always fully comprehend exactly what is going on, but one does get an idea about what is being talked about within each particular branch of mathematics, and I feel that this is better than not knowing anything at all!