It’s never a bad idea to make yourself more appealing to potential employers. But there are so many skills to learn, from coding, to graphic design, to Excel, and on and on, it can be hard to know where to start, and education is often expensive. So we’ve rounded up courses that cover all of the above and more, all for less than 20 bucks. Take a look, and pick the ways you want to boost your resume.

Microsoft Excel is well worth learning for professionals of all kinds. But it also goes deep, with many uses and possibilities that make learning it intimidating. So this massively discounted bundle of Excel courses is great place for anyone to start.

If you work in an office, you probably work with Microsoft Office Suite. And of all the apps, Excel is perhaps the most useful for any professional to master. But it’s a complicated application, and to become a master you will need guidance.

Everyone can brush up on their Excel skills for the workplace. This new year being more productive and efficient are probably on the top of most people’s list when it comes to career-focused resolutions. Learning to master Excel does not have to be overwhelming or daunting.

No matter what kind of office you work in, chances are it’s running on Microsoft Office. Excel, Word, PowerPoint, Outlook and beyond. These are the apps that any job that involves a keyboard or screen will have to learn. So it’s one of the most useful software to master.

If you work in an office, you probably work with Microsoft Office. Their productivity software suite has become a staple of work environments around the world. Learning Word or PowerPoint is useful for any professional. But few are as useful to master as Excel, which is one of the most widely used professional applications.

The world is just getting more competitive, so it’s more important than ever to have a sharp set of skills in areas relevant to the modern workplace. In the following massively discounted courses, you’ll find invaluable additions for your resume, and the certification to back it all up — from project management to data science, Excel spreadsheets to SQL databases. Take a look at what we’ve found, most are more than 95% off:

What better reason to stay at home and avoid the holiday throngs than with this pair of early deals on lessons in data analytics? These lessons cover Google Analytics and Excel, and both are going for more than 90% off — it doesn’t take a great grip on numbers to know that’s a good deal.

There’s a lot to Microsoft Office, and many of us are expected to dive right in and be competent with the software suite with little to no training. That’s where this Cult of Mac Deals promotion can help.

With this actionable course, you’ll learn be able to mater MS Office and take your skills to the next level (while impressing your co-workers and superiors in the process) with The Microsoft Office 2011 Course Bundle. And Cult of Mac Deals has this package available for only $39 for a limited time.

Dragon Dictate for Mac 3 offers incredibly accurate speech-to-text and allows you to run your favorite desktop applications by voice. It’s the #1 voice recognition software on the market for good reason, and it’s available for 50% off – just $99.99 – from Cult of Mac Deals during this limited time offer.

This software solution offer far more than speech-to-text. With it you can create and edit documents, manage email, surf the Web, update social networks, and more – quickly, easily, and accurately – all by voice. Just read your text aloud and watch the magic appear before your eyes right on your computer screen.