I first knew of Matt Gemmell as a Mac and iOS developer on Twitter, so I was curious when he decided to become a full-time writer instead. “Changer” is his first novel, his second came out late last year.

Overall the story hangs together nicely. It’s well structured, the characters are not especially well developed but work well enough for a page-turner-thriller, which is clearly what it was aiming for.

Over the years my job has required me to do varying amounts of public speaking. A few years ago I was doing it weekly to audiences ranging from a handful of people to dozens. I’ve done less recently but it’s something I wanted to get back into, hence this book. TED talks are slickly produced and the speakers almost always appear to be, at the very least, competent, and usually much better than that. That made “TED Talks” a good place to start.