Modern day knowledge sources are completely different to what was available 5+ years ago. We’re not limited to classroom trainings and paperbacks. When compares to those, the vast number of blogs, video courses and tutorials brings us the information that: is usually more up-to-date can be more easily corrected (or updated) may even be available for free (or just be cheaper, because of lower “delivery” costs Fortunately traditional books are not dead, they’ve just evolved into e-books, publishing houses started to publish “in-progress” versions of their books (to reduce time to market…