diff --git a/lessons/lesson-61 b/lessons/lesson-61
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--- /dev/null
+++ b/lessons/lesson-61
@@ -0,0 +1,10 @@
+Lesson 61: Introducing ~ and `: Number row, fourth fingers
+~~~~ ```` ~~~~ ```` ~~~~ ```` ~~~~ ```` 
+
+~~~~ ```` ~~~~ ```` ~~~~ ```` ~~~~ ```` 
+
+~`~`~`~` ~`~`~`~` ~`~`~`~` ~`~`~`~` 
+
+~`~ ~`~ ~`~ ~`~ ~ ~` ~ ~` ~ ~` ~ ~` 
+
+~`~~ ~`~~ ~`~~ ~`~~ `~` `~` `~` `~`
diff --git a/lessons/lesson-62a b/lessons/lesson-62a
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index 0000000..f06ec66
--- /dev/null
+++ b/lessons/lesson-62a
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+Lesson 62a: Comprehensive, including ~ and ` (You rock!)
+(((( ==== **** }}}} )))) {{{{ ++++ [[[[ ]]]] &&&& !!!! 
+
+#### $$$$ 1111 9999 0000 2222 3333 5555 4444 7777 6666 %%%% 8888 ~~~~ ```` 
+
+(((( ==== **** }}}} )))) {{{{ ++++ [[[[ ]]]] &&&& !!!! 
+
+#### $$$$ 1111 9999 0000 2222 3333 5555 4444 7777 6666 %%%% 8888 ~~~~ ```` 
diff --git a/lessons/lesson-62b b/lessons/lesson-62b
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index 0000000..2ae149c
--- /dev/null
+++ b/lessons/lesson-62b
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+Lesson 62b: Comprehensive, including ~ and ` (You rock!)
+`_code_` `_code_` `_code_` `_code_` 
+
+{~!i}([abc])->{1,2,3,4,5,6,7,8} {~!i}([abc])->{1,2,3,4,5,6,7,8} 
+
+%x=&y %x=&y %x=&y %x=&y a*(b+~c) a*(b+~c) a*(b+~c) a*(b+~c) 
+
+#in->[x:_w_]->`s++` #in->[x:_w_]->`s++` #in->[x:_w_]->`s++` #in->[x:_w_]->`s++` 
+
+#def if( while( #def if( while( $s[x--] $s[x--] $s[x--] $s[x--] 
+
+exit(0); exit(0); exit(0); exit(0);