I stumbled upon this book recently. It was quite good. I highly recommend everyone (yes even LabVIEW Developers) read it. It is very insightful. It's also free and very short at 76 pages and it reads fast. There really is no excuse.
I very much like the title. I think
Writing code is much easier than reading it. If you write code at your maximum level of cleverness, then by definition you are not smart enough to read and understand it. The trick is to make sure that you leave yourself some margin.