Be a part of our community of 1M+ users who develop and demonstrate their skills on CodeSignal
4 courses
48 practices
4 hours
Develop the skills to analyze data, make sound decisions, communicate reasoning clearly, and turn choices into effective action. This path builds practical, repeatable habits for critical thinking and decision-making in any role.
This course builds the habit of using data thoughtfully, not blindly. Learners practice choosing reliable sources, interpreting patterns, distinguishing correlation from causation, and turning raw findings into clear, actionable insights that support better decisions.
This course focuses on deliberate, transparent decision-making. Learners practice defining what “good” looks like, choosing a method, weighing options with structure, making responsible calls, and following through with accountability.
This course emphasizes the communication side of critical thinking and decisions. Learners practice explaining the “why,” translating decisions into concrete next steps, sharing decisions with clarity, and handling pushback with transparency.
This course helps learners move from decision to execution. They practice separating signal from noise, sequencing work strategically, adapting priorities as information changes, and building sustainable prioritization habits.
Hear what our customers have to say about CodeSignal Learn
I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!
Francisco Aguilar Meléndez
Data Scientist
+11
I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.
Faith Yim
Software Engineer
+14
It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.
Alex Bush
Full Stack Engineer
+9
I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.
Abbey Helterbran
Tech consultant
+8
I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.
Jonathan Miller
Senior Machine Learning Engineer
+12
I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!
