There is a lot of talk around data science, analytics and visualization today. Big data, machine learning and artificial intelligence are changing the way we understand and influence the surrounding environment and society through analysis and manipulation of fluxes of data. We request for fresh data on a regular basis, from our colleagues, our bosses, our clients, institutions and online public sources such as open data ones. We want them to be clean, reliable, and accessible to extract useful information and knowledge in an easy and shareable way but: Do we really know what are the relevant data we need? Do we always extract knowledge from them? Are we really able to take informed decisions based on them? Do we really know how to deal with information overflow ? Do we know how to avoid misinterpreting data with the risk of taking wrong decisions? "Data and decision"is a tough subject to talk about today. Further to involve the understanding of statistics and
Working into a business requires managers and most employees to make presentations. The real challenge is to make them relevant, time efficient and hopefully enjoyable for the participants. Their frequency could be occasional, frequent or with a repeating schedule. Some presentations might be risky, with significant effect on one's career, driving success or failure. We might enjoy the challenge of public speaking, or suffer while preparing and attending the experience. Multiple variables have to be taken into consideration, such as the goal, the context, the culture of the audience, the "way they do it", and many others. Your delivery must be appropriate to the audience's knowledge and abilities. A successful presentation is the result of attentive preparation and the ability to manage multiple variables and conditions around it. Further to it good preparation is the key to confidence, which is the key to you being relaxed. Years ago, as a consultant , I had