My limited experience with graphical programming is that of using LabView for a test set that a customer requested, rather than my usual programming language of choice. I am not a big fan of graphical programming although I know a lot of folks are - I do get concerned because I think that "you can focus on engineering/design concepts, instead of teaching a programming language" may be a good start for getting young people interested - but if you don't learn a programming language, you sacrifice the ability to have low level control when you need it.
The promise of the Internet of Things (IoT) is that devices, gadgets, and appliances we use every day will be able to communicate with one another. This potential is not limited to household items or smartphones, but also things we find in our yard and garden, as evidenced by a recent challenge from the element14 design community.
If you didn't realize that PowerPoint presentations are inherently hilarious, you have to see Don McMillan take one apart. McMillan -- aka the Technically Funny Comic -- worked for 10 years as an engineer before he switched to stand-up comedy.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.