diff --git a/README.kindle b/README.kindle
index dc9e48c5..7e6f46b9 100644
--- a/README.kindle
+++ b/README.kindle
@@ -20,6 +20,8 @@ To create the kindle version:
 
     * the new file is cplusplus.mobi
     
+    * open the browser while in the directory containing the .mobi file (?)
+
     * Follow the instructions at
         https://kdp.amazon.com/self-publishing/dashboard 
 
@@ -28,6 +30,9 @@ To create the kindle version:
         - Click on the elipses (...) -> Edit e-book details
         - Click on C++ Annotations
         - Edit the version
+- Save and Continue (several times)
+
+not required anymore:
         - Click Browse to go to the location where the .mobi file is and
           upload
 
diff --git a/annotations/html/cplusplus.opf b/annotations/html/cplusplus.opf
index 23f712c8..c620df84 100644
--- a/annotations/html/cplusplus.opf
+++ b/annotations/html/cplusplus.opf
@@ -2,13 +2,13 @@
 <package unique-identifier="uid">
     <metadata>
         <dc-metadata xmlns:dc="http://purl.org/metadata/dublin_core" xmlns:oebpackage="http://openebook.org/namespaces/oeb-package/1.0/">
-            <dc:Title>C++ Annotations Version 11.2.0</dc:Title>
+            <dc:Title>C++ Annotations Version 12.0.0</dc:Title>
             <dc:Language>en-us</dc:Language>
             <dc:Identifier id="uid">EA989A949A</dc:Identifier>
         <dc:Creator>Frank B. Brokken</dc:Creator><dc:Publisher>The University
 of Groningen</dc:Publisher><dc:Identifier
 scheme="ISBN">9036704707</dc:Identifier><dc:Subject
-BASICCode="COM000000">Computing, Internet</dc:Subject><dc:Date>Nov 18, 2019
+BASICCode="COM000000">Computing, Internet</dc:Subject><dc:Date>Dec 25, 2021
 </dc:Date></dc-metadata>
         <x-metadata>
             <output encoding="Windows-1252"/>
@@ -41,7 +41,8 @@ BASICCode="COM000000">Computing, Internet</dc:Subject><dc:Date>Nov 18, 2019
         <item id="item23" media-type="text/x-oeb1-document" href="cplusplus22.html"/>
         <item id="item24" media-type="text/x-oeb1-document" href="cplusplus23.html"/>
         <item id="item25" media-type="text/x-oeb1-document" href="cplusplus24.html"/>
-        <item id="item26" media-type="text/x-oeb1-document" href="cppindex.html"/>
+        <item id="item26" media-type="text/x-oeb1-document" href="cplusplus25.html"/>
+        <item id="item27" media-type="text/x-oeb1-document" href="cppindex.html"/>
     </manifest>
     <spine>
         <itemref idref="item1"/>
@@ -70,6 +71,7 @@ BASICCode="COM000000">Computing, Internet</dc:Subject><dc:Date>Nov 18, 2019
         <itemref idref="item24"/>
         <itemref idref="item25"/>
         <itemref idref="item26"/>
+        <itemref idref="item27"/>
     </spine>
     <tours/>
     <guide/>
diff --git a/annotations/yo/coroutines/intro.yo b/annotations/yo/coroutines/intro.yo
index 1090e908..a2ba214d 100644
--- a/annotations/yo/coroutines/intro.yo
+++ b/annotations/yo/coroutines/intro.yo
@@ -88,7 +88,7 @@ While tt(fiboCoro) lays the foundation for obtaining a sequence of
 fibonacci numbers, resuming a coroutine doesn't mean calling a function the
 way the above member tt(Fibo::next) is called: there are no arguments; there
 is no preparation of local variables; and there is no stack
-handling. Instead there's merely a direct jump to the instruction just beynd
+handling. Instead there's merely a direct jump to the instruction just beyond
 the coroutine's suspension point. When the coroutine's code encounters the
 next suspension point (which occurs in tt(fiboCoro) at it's next cycle,
 when it again reaches its tt(co_yield) statement) then the program's execution