This got me thinking about how I could help others with simple and intuitive ways to explain math stuff. I get annoyed when people say "doubly differentiable" as opposed to no gaps and no kinks. What makes this difficult is that everyone is at a different level and so you won't be able to please most people. However, I figure, any help is better than no help at all.
As expected, there is already plenty of material on the internet. For statistics, a good place to start is "The Most Comprehensive Review of Comic Books Teaching Statistics by Rasmus Baath." A second good place to look is "A Brief Review of All Comic Books Teaching Statistics by Rasmus Baath and Christian Robert." For links to the book themselves, see the list below.

The Cartoon ...

The Cartoon Guide to Statistics by Larry Gonick, Woollcott Smith

The Cartoon Introduction to Statistics by Grady Kelin, Alan Dabney

The Cartoon Guide to Statistics by Larry Gonick, Woollcott Smith

Manga Guide to Statistics by Shin Takahashi

... for Dummies

Biostatistics For Dummies by John Pezzullo

Business Statistics For Dummies by Alan Anderson

Predictive Analytics For Dummies by Anasse Bari

Probability For Dummies by Deborah J. Rumsey

Psychology Statistics For Dummies by Donncha Hanna

Statistical Analysis with Excel For Dummies by Joseph Schmuller

Statistics Essentials For Dummies by Deborah J. Rumsey

Statistics for Big Data For Dummies by Alan Anderson

Statistics For Dummies by Deborah J. Rumsey

Statistics II For Dummies by Deborah J. Rumsey

Statistics Workbook For Dummies by Deborah J. Rumsey

Statistics: 1,001 Practice Problems For Dummies (+ Free Online Practice) by Consumer Dummies

Biostatistics For Dummies by John Pezzullo

Algebra ...

Algebra I For Dummies by Mary Jane Sterling

Algebra I Essentials For Dummies by Mary Jane Sterling

Algebra I Workbook For Dummies by Mary Jane Sterling

Algebra II For Dummies by Mary Jane Sterling

Algebra II Workbook For Dummies by Mary Jane Sterling

Algebra II: 1,001 Practice Problems For Dummies (+ Free Online Practice) by Mary Jane Sterling

Algebra I For Dummies by Mary Jane Sterling

Basic Math and PreAlgebra ...

Calculus ...

Complete Idiot's Guide to Algebra Word Problems by Izolda Fotiyeva

Cartoon Guide ...

Data ...

Differential Equations ...

Excel Data Analysis For Dummies by Stephen L. Nelson

Geometry ...

How to Solve Word Problems in Algebra by Mildred Johnson

Linear Algebra For Dummies by Mary Jane Sterling

Manga Guide to ...

Math Word Problems ...

Optimization Modeling with Spreadsheets by Kenneth R. Baker

Physics ...

PreCalculus ...

Predictive Analytics For Dummies by Anasse Bari

R For Dummies by Andrie de Vries

Schaum's ...

Schaum's Outline of Introduction to Probability and Statistics by Seymour Lipschutz

Schaum's Outline of Probability by Seymour Lipschutz

Schaum's Outline of Probability and Statistics: 760 Solved Problems + 20 Videos by John Schiller

Schaum's Outline of Statistics by Murray Spiegel

Schaum's Outline of Introduction to Probability and Statistics by Seymour Lipschutz

Technical Math For Dummies by Barry Schoenborn

Trigonometry ...