diff --git a/science/ds/docs/books.txt b/science/ds/docs/books.txt
index dd529e88f..e9a08ee51 100644
--- a/science/ds/docs/books.txt
+++ b/science/ds/docs/books.txt
@@ -1,3 +1,7 @@
+2023
+Brass - Advanced Data Structures ru
+    E43F582A0B1F381FBF4D239BC217E763
+    !!! cool, c-samples
 2022
 Kubica - Data Structures the Fun Way
     B578486F3575493B6DA98C6491DCA1F7
diff --git a/security/crypto/articles.txt b/security/encryption/docs/articles.txt
similarity index 100%
rename from security/crypto/articles.txt
rename to security/encryption/docs/articles.txt
diff --git a/security/crypto/books.txt b/security/encryption/docs/books.txt
similarity index 90%
rename from security/crypto/books.txt
rename to security/encryption/docs/books.txt
index e31e22e00..fc9b40da4 100644
--- a/security/crypto/books.txt
+++ b/security/encryption/docs/books.txt
@@ -1,3 +1,6 @@
+2022
+Rubin - Secret Key Cryptography ru
+    5893B20A413C612ED889A025F9668485
 2021
 Wong - Real World Cryptography
     3B79591A34004130DB8702CB61EB2C9B