From astrophysics and fluid dynamics to nuclear physics and weather modeling, write efficient numerical algorithms with the best Fortran courses.

Interested in 3D printing? Learn how with the best 3D printing courses. Maintain your printer, troubleshoot issues, or build your own.

Learn the second-most popular language for data science after Python, favored by statisticians and researchers.

Want to make games with Roblox or LÖVE2D? Write configuration scripts for Neovim or Adobe Lightroom? Or embed Lua into IoT devices? Here are the best courses.

Whether you want to lead or not, taking these public speaking courses will help you find your voice and mesmerize your audience.

Learn how to plan, write, record, edit, and publish your podcast with the best podcasting courses from enthusiastic online teachers.

Unleash your creativity with our beginner-friendly animation courses. Designed by industry pros, you’ll gain the skills to breathe life into your unique stories. Start your animation journey today!

Unleash your inner artist with our top-rated online drawing courses. Learn at your own pace and create stunning artwork you’ll be proud to share.

Elevate your financial skills with our curated course list for business owners, entrepreneurs, and budding bookkeepers, to guide you through financial management.

Stand out from the Swift developer crowd with these free and paid courses on Objective-C.

Create websites and web apps that leave no user behind. Master inclusive design with our top-rated online courses.

Here is a guide with the best free online courses to learn Scala, a very flexible programming language used to work with lots of data and for building stuff for the web.