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Learner Reviews & Feedback for The Data Scientist’s Toolbox by Johns Hopkins University

33,062 ratings
7,061 reviews

About the Course

In this course you will get an introduction to the main tools and ideas in the data scientist's toolbox. The course gives an overview of the data, questions, and tools that data analysts and data scientists work with. There are two components to this course. The first is a conceptual introduction to the ideas behind turning data into actionable knowledge. The second is a practical introduction to the tools that will be used in the program like version control, markdown, git, GitHub, R, and RStudio....
Foundational tools

(243 Reviews)

Introductory course

(1056 Reviews)

Top reviews


Apr 14, 2020

As a business student from Bangladesh who is aspiring to be a data analyst in near future, I love this course very much. The quizzes and assessments were the places to check how much I exactly learnt.


Sep 7, 2017

It was really insightful, coming from knowing almost nothing about statistics or experimental design, it was easy to understand while not feeling shallow. Just the right amount of information density.

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6901 - 6925 of 6,958 Reviews for The Data Scientist’s Toolbox

By Stefan S

Oct 31, 2020

Would wish this course was not a requirement for specialization. Easy, and not giving anything.

By Omar A

Jul 22, 2020

An online non-credit course authorized by Johns Hopkins University and offered through


By Georgios K

Dec 7, 2019

The courses are not by a real instructor/professor but are scripts read out loud by a machine.

By Tony W

Apr 11, 2016

The course does not warrant the price, it has way too little information. Very dissatisfied.

By Espen R

May 31, 2017

This course could be summed up in one page or so. Very little content.

GitHub lessons good.

By Jordana Z

Aug 24, 2020

The robot voice is terrible. This needs to be fixed. I wish it was an actual person.

By Wesley M

Nov 28, 2020

I finished this course in one day. It is ridiculous as it is poorly structured.

By unteachable

May 17, 2016

By far to expansive for what you get. Anyway, thanks for the hint about swirl.

By Samuel M M

May 8, 2020

Horiible, me volvieron a cobrar un cuando ya lo había terminado. Una estafa

By Bernard

Sep 9, 2020

This course was extremely exciting for me. I enjoy every bit of the course.

By Aung K

Dec 2, 2016

Not worth 29$ considering you could take away very little from this course.

By Laura A G G

Sep 25, 2020

No quiero terminar el curso porque no me gustó la metodología del curso.

By Pietro B

Jan 26, 2017

I have no idea why you called it course, since there was nothing inside.

By Rimmon G

May 4, 2020

I do not recommend the whole program for anyone, it is a waste of time.

By Zdeněk Š

Jun 3, 2022

Very easy. Little learned. Lazy robot voice videos. Waste of 2 hours.

By Deleted A

Dec 27, 2021

Nope, classess should never be read and or listen to a robot. NOPE

By sameer

Jun 7, 2016

waste of time. except for git and github ,nothing much is in it.

By Ashish P

Jul 27, 2020

I didnt like the idea of automated videos. Doesnt works for me.

By Zach

Oct 24, 2016

I was expecting 4 weeks of work, but it was more like 4 hours.

By Seong B P

Jul 14, 2017

nothing special here... the real stuff begins next course...

By Rahul J

Oct 23, 2019

u clearly didn't even explain the basics of r language


Oct 6, 2020

Its pretty much basic course. You might skip it.

By Andrey A

Mar 10, 2016

This course must be a part of another courseres.

By Chaobin Y

May 8, 2017

too little materials. can finish in two nights

By Shoeib S

Oct 6, 2021

Automated videos ruined the fun of learning.