diff --git a/data_structures/README.md b/data_structures/README.md
index 1ea55a8..1582a80 100644
--- a/data_structures/README.md
+++ b/data_structures/README.md
@@ -9,6 +9,8 @@
 
 ## Hosted Papers
 
+* :scroll: [An Introduction to Bε-trees and Write-Optimization](b-trees-write-optimization.pdf)
+
 * :scroll: [Epidemic Broadcast Trees](epidemic-broadcast-trees.pdf)
 
 * :scroll: [Ideal Hash Trees](ideal-hash-trees.pdf)
diff --git a/data_structures/b-trees-write-optimization.pdf b/data_structures/b-trees-write-optimization.pdf
new file mode 100644
index 0000000..d848f47
Binary files /dev/null and b/data_structures/b-trees-write-optimization.pdf differ