Some of the most important and prestigious universities and study centers in the world offer free courses and programs to encourage the development of new skills and update the knowledge we already have. Here is a list of those academic offers! 

One of the keys to success is constant training, continuous updating, and contact with academia. Today's world is demanding, yes; but it also offers us an ocean of possibilities for continuous learning. 

Technology allows us to cross borders, to be citizens of the world from our homes; "This new form of communication allows contact and exchange, in real time, between members of communities whose identity traits have nothing, or little, to do with traditional identities, which are established primarily for geographical reasons., —says Antonio García Jiménez, a communications professor at the Rey Juan Carlos University in Spain, adding—, The Internet and new technologies in general are presented as a space where the key lies in the interaction between individuals and/or groups, focused on the transmission of data.. 

The Internet, for its part, facilitates access to a wide range of educational offerings that transcend the State in which we live: data analysis, digital marketing, artificial intelligence and global warming are some of the major topics that we can delve into thanks to this offering, which the best universities on the planet make available to everyone free of charge. 

In this top 10, based on the ranking made by the magazine Times Higher Education, you can find some course that interests you:  

1. Internet Marketing (Oxford University): A short course on the basics of online marketing and creating digital strategies. Perfect for these days! 
2. Young people and their mental health (University of Cambridge): This course tells us about what mental health is, what are the common problems and their causes among young people. Mental health is one of the big issues of this decade. 
3. Machine Learning (Stanford University): Machine learning is one of the current technologies with a high impact in sectors such as the automotive industry, text recognition and effective web searches. Data is key to the future. 
4. The analytical edge (MIT): The data available to organizations has reached unprecedented levels. Data is transforming business, social interactions, and the future of our society. In this course, you will learn how to use data and data analytics. 
5. Pricing options with mathematical models (California Institute of Technology – Caltech): is an introduction to the Black-Scholes-Merton model and other mathematical models for the valuation of financial derivatives and hedging risk in financial markets. 
6. Introduction to game development (Harvard University): Learn the basics of 2D and 3D video game design, and review how classic titles such as Super Mario Bros, Pong, Flappy Border, Angry Birds, Pokémon and Portal were created.
7. Paradoxes of war (Princeton University): War is not only a normal part of human existence, but it is one of the most important factors in making us who we are. Through military history and basic sociology we will better understand today's society. 
8. The journey of the universe, the unfolding of life (Yale University): A course that unites the discoveries of evolutionary sciences with the humanities such as history, philosophy, art, and religion.. 
9. Mathematics for Machine Learning: Linear Algebra (Imperial College London): You will understand what linear algebra is and how it relates to vectors and matrices and how to work with them. You will also learn, with this knowledge, how to rotate face images or extract eigenvectors.
10. Global Warming I: The Science and Modeling of Climate Change (University of Chicago): What is global warming and the forecast of the impact of humans on the Earth's climate. This is the big topic of the decade and no prior knowledge is necessary. 

No excuse! This is a great time to learn something new. 

Bibliographic sources:

• Times Higher Education.