diff --git a/Cryptography/README.md b/Cryptography/README.md
index 7c3cdc0..0261d9b 100644
--- a/Cryptography/README.md
+++ b/Cryptography/README.md
@@ -134,6 +134,8 @@ babaaaabaaababaababaaaabbabbababbaaaabaaaabbbaabaabaaaaaabaaabaaabaaabaaabbaabaa
 
 #### [Base64]: 
 
+Base64 is a non-readable encoding that encodes arbritary 8-bit input using 6-bit alphabet of case sensitive alphanumerics, "+", "/". Every 3 bytes of input map to 4 bytes of output. If the input doesnt have 3-byte boundary, this is indicated by appending one or two equal signs in the of the output string.
+
 - [Base64 Decoder](http://www.base64decode.org)
 
 ```
@@ -154,6 +156,7 @@ Nzk0czAwIHRueXMgZmhidnByZWMgZWhiIHNiIGdlbmMgcWV2dWcgcnVnIGhibCBnYXJmcmVjIFYgbG9y
 
 - [ASCII Conversion Table](http://defindit.com/ascii.html)
 - [Convert All](http://www.asciitohex.com/)
+- [GREAT ASCII CHART](http://www.jimprice.com/jim-asc.shtml)
 
 
 - Decimal to hex: