DataGenetics (blog) by Nick Berry.
I mentioned Nick’s post Estimating “known unknowns” but his blog merits more than a mention of that one post.
As of today, Nick has 217 posts that touch on topics relevant to data science and have illustrations that make them memorable. You will remember those illustrations for discussions among data scientists, customers and even data science interviewers.
Follow Berry’s posts long enough and you may acquire the skill of illustrating data science ideas and problems in straight-forward prose.
Good luck!