Learn about the top ten software vulnerabilities, as described by the Open Web Application Security Project (OWASP).

So much of how the world works now depends on data, and how data gets from source to destination quickly and reliably. When most people type a query into a web browser, or turn on an alarm system from their phone, they don’t care how it happens, just that it happens. But if you’re a networking engineer, it’s your job to ensure that the systems that work together to move the data around run smoothly. If you’re just getting started in network engineering, the number of technologies involved may seem overwhelming. In this course, Joli Ballew works through the fundamentals, one step at a time, starting with an examination of the terms necessary to understand basic networking and the packet delivery process, followed by sections on network models, and the most common ports and protocols used in the data delivery process. She also covers hardware considerations, and closes with a detailed look at how the packet delivery process works in both local and remote scenarios.

Explore packet delivery topics like understanding port numbers, establishing a TCP session, and exploring basic IP routing.

Explore the Python 3 standard library. Learn how to take advantage of its built-in modules to calculate statistics, format dates and times, get content from the internet, and more.

Learn to integrate the tidyverse into your R workflow and get new tools for importing, filtering, visualizing, and modeling research and statistical data.

Learn how to use the iterators and data structures in the Standard PHP Library to traverse, filter, and sort data.

Threat modeling helps security professionals understand what can go wrong—and what to do about it. Learn to use the four-question and STRIDE frameworks for threat modeling.

Learn to use the popular Tiffen Dfx plugin for processing both photos and videos.

Bring your design ideas to life. Learn the basics of Tinkercad, the free online app for anyone who wants to get started in 3D design and CAD.

Learn how to be more approachable, and build better relationships at work. Develop the mindset and communication skills to help people see the real you.

Management trainer Chris Croft helps you understand how you can interact more successfully with others by being assertive.

Learn what to do and say in order to put yourself on the promotion track, as well as when and how to ask for the promotion.

Learn how to build custom voice commands for Alexa devices using the Alexa Skills Kit and Node.js.

Learn how to study, review, and analyze images, sharpening your photographic eye and expanding your visual vocabulary.

Learn how to plan and host webinars for your company.

Learn how to say no. Learn what tasks to say "no" to and how to do it respectfully.

Learn tips and strategies for selling photography and other kinds of artwork at art shows.

Discover how to harness the power of type. Learn how to set display type, combine typefaces, work with type in photos, and avoid common mistakes.

An introduction to the micro four-thirds format, from strengths and drawbacks to shooting tips.

Are you looking to take your studio photography to the next level? Do you want to go beyond using natural light and on-camera flashes to add depth and character to your photos? In this course, Abba Shapiro gives you a brisk look at using strobe lights in a studio setting—lessons that easily translate to the field and locations, inside and out. Learn why shooting with strobes and continuous lighting makes such a big impact on your photographs, and how to buy a good, affordable starter kit. Abba also shows how to set your gear up, trigger your lights, and make modifications with accessories like reflectors, umbrellas, and softboxes. Finally, learn how to use strobes for portraits and headshots with one-, two-, and three-light set-ups.