diff --git a/01b-overview.Rmd b/01b-overview.Rmd
index 878881c..b13cfe5 100644
--- a/01b-overview.Rmd
+++ b/01b-overview.Rmd
@@ -11,6 +11,12 @@ ottrpal::include_slide("https://docs.google.com/presentation/d/137sOakbsXwN3ovgt
 
 ## What are computational biology and data science?
 
+Study and use of computational skills within the field of biology may be described as data science, computational biology, or bioinformatics. While these terms may be used interchangeably by some, they do have distinctions. Specifically computational biology and bioinformatics are considered a subset of data science where in each case biology is the "domain specific knowledge" aspect of data science. Data science has been described as an interdisciplinary study combining computer science, applied math & statistics, and domain specific knowledge. That domain specific knowledge could be from any field with data: sociology, business, education -- or in the case of computational biology/bioinformatics -- biology.
+
+The Venn diagram below displays a model of this interdisciplinary view of data science and takes it a step further, encapsulating each subdivision and data science as a whole within the frame of ethics, as described in a PLOS Biology perspective of data science [@Bourne_2021].  
+
+![Venn Diagram: Defining Data Science](resources/images/what_is_data_science_venn.png)
+
 ## Motivations for computational work in general and to learn computational skills yourself
 
 ## Examples of the application of computational work to wet lab research
diff --git a/book.bib b/book.bib
index ec95aa4..6bffb5b 100644
--- a/book.bib
+++ b/book.bib
@@ -1,3 +1,20 @@
+@article{Bourne_2021, 
+  title={Is “bioinformatics” dead?}, 
+  volume={19}, 
+  ISSN={1545-7885}, 
+  DOI={10.1371/journal.pbio.3001165}, 
+  abstractNote={Why would a computational biologist with 40 years of research experience say bioinformatics is dead? The short answer is, in being the Founding Dean of a new School of Data Science, what we do suddenly looks different.}, 
+  number={3}, 
+  journal={PLoS biology}, 
+  author={Bourne, Philip E.}, 
+  year={2021}, 
+  month=mar, 
+  pages={e3001165}, 
+  language={eng} 
+}
+
+
+
 @Manual{rmarkdown2021,
   title = {rmarkdown: Dynamic Documents for R},
   author = {JJ Allaire and Yihui Xie and Jonathan McPherson and Javier Luraschi and Kevin Ushey and Aron Atkins and Hadley Wickham and Joe Cheng and Winston Chang and Richard Iannone},
diff --git a/resources/images/what_is_data_science_venn.png b/resources/images/what_is_data_science_venn.png
new file mode 100644
index 0000000..b924154
Binary files /dev/null and b/resources/images/what_is_data_science_venn.png differ