download all images in the assets/ folder (thanks Victor Martinez)

from his patch sent by email.

Now the EPUB is properly self-contained.

debugging.md

@@ -72,7 +72,7 @@ re-use it in another image, be it on another machine.
 We can do all this through commands, keyboard shortcuts and also through a
 menu or mouse clicks.
 
-!["changing the log level with log4slime"](https://github.com/sharplispers/log4cl/raw/master/images/screenshot-15.png)
+!["changing the log level with log4slime"](assets/log4cl.png)
 
 We invite you to read log4cl's README.
 

editor-support.md

@@ -93,7 +93,7 @@ and SLIME (same shortcuts). It comes with an ncurses and an Electron
 frontend, and other programming modes: Python, Go, Rust, JS, Nim,
 Scheme, HTML, CSS, directory mode, a vim layer, and more.
 
-<img src="https://github.com/cxxxr/lem/raw/master/screenshots/terminal.png"
+<img src="assets/lem-terminal.png"
      style="width: 800px"/>
 
 
@@ -129,7 +129,7 @@ inspection.
 supports running a REPL, evaluate code, auto indent, code completion, go to definition, documentation on hover, etc.
 It's based on [cl-lsp](https://github.com/ailisp/cl-lsp) language server and it's possible to write LSP client that works in other editors.
 
-<img src="https://raw.githubusercontent.com/ailisp/commonlisp-vscode/master/screenshot.png" style="width: 800px"/>
+<img src="assets/commonlisp-vscode.png" style="width: 800px"/>
 
 ## Geany (experimental)
 
@@ -147,7 +147,7 @@ highlighting of errors and warnings, a REPL, and a project skeleton creator.
 kernel for Jupyter notebooks.
 
 
-<img src="https://jupyter.org/assets/jupyterpreview.png"
+<img src="assets/jupyterpreview.png"
      style="width: 800px"/>
 
 There is also [Darkmatter](https://github.com/tamamu/darkmatter), a notebook-style

emacs-ide.md

@@ -1,10 +1,8 @@
----
-title: Using Emacs as an IDE
----
+# Using Emacs as an IDE
 
 This page is meant to provide an introduction to using [Emacs](https://www.gnu.org/software/emacs/) as a Lisp IDE.
 
-![](https://www.gnu.org/software/emacs/images/teaser.png)
+![](assets/emacs-teaser.png)
 
 
 **Note**: [Portacle](https://shinmera.github.io/portacle/) is a
@@ -172,13 +170,13 @@ packages will display all possible keybindings starting with the key(s) you just
 
 For example, I know there are useful keybindings under `C-x` but I don't remember which ones… I just type `C-x`, I wait for half a second, and which-key shows all the ones available.
 
-![](https://raw.githubusercontent.com/justbur/emacs-which-key/master/img/which-key-minibuffer.png)
+![](assets/emacs-which-key-minibuffer.png)
 
 Just try it with `C-h` too!
 
 See also [Helpful](https://github.com/Wilfred/helpful), an alternative to the built-in Emacs help that provides much more contextual information.
 
-![](https://raw.githubusercontent.com/Wilfred/helpful/master/screenshots/helpful.png)
+<img src="assets/emacs-helpful.png" style="height: 450px"/>
 
 
 ### Learn Emacs with the built-in tutorial
@@ -347,7 +345,7 @@ For example (point is before the parenthesis):
 Use the built-in `C-c TAB` to complete symbols in SLIME. You can get tooltips
 with [company-mode](http://company-mode.github.io/).
 
-![](http://company-mode.github.io/images/company-elisp.png)
+![](assets/emacs-company-elisp.png)
 
 In the REPL, it's simply TAB.
 

macros.md

@@ -705,6 +705,6 @@ macros, showing simple to advanced concepts such as compiler macros:
 [https://www.youtube.com/watch?v=ygKXeLKhiTI](https://www.youtube.com/watch?v=ygKXeLKhiTI)
 It also shows how to manipulate macros (and their expansion) in Emacs.
 
-[![video](http://img.youtube.com/vi/ygKXeLKhiTI/0.jpg)](https://www.youtube.com/watch?v=ygKXeLKhiTI)
+[![video](assets/youtube-little-bits-lisp.jpg)](https://www.youtube.com/watch?v=ygKXeLKhiTI)
 
 * the article "Reader macros in Common Lisp": https://lisper.in/reader-macros

metadata.txt

@@ -9,7 +9,7 @@ creator:
   text: The Common Lisp Cookbook contributors
 identifier:
 publisher:
-rights: © 2021 February, 25th, vindarel <[email protected]>.
+rights: © 2021 March, 31, vindarel <[email protected]>.
   This e-book is free of charge, but you can [pay what you want](https://ko-fi.com/s/01fee22a32) for it.
 cover-image: orly-cover.png
 ...

web.md

@@ -487,7 +487,7 @@ See the documentation: [https://edicl.github.io/hunchentoot/#conditions](https:/
 
 Clack users might make a good use of plugins, like the clack-errors middleware: [https://github.com/CodyReichert/awesome-cl#clack-plugins](https://github.com/CodyReichert/awesome-cl#clack-plugins).
 
-<img src="https://camo.githubusercontent.com/17dd6e0a7a916c8118f0134a94404f6757bee9dc/68747470733a2f2f7261772e6769746875622e636f6d2f6575646f786961302f636c61636b2d6572726f72732f6d61737465722f73637265656e73686f742d6465762e706e67" width="800"/>
+<img src="assets/clack-errors.png" width="800"/>
 
 ## Weblocks - solving the "JavaScript problem"©
 
@@ -496,7 +496,7 @@ server-based framework with a built-in ajax update mechanism. It
 allows to write dynamic web applications *without the need to write
 JavaScript or to write lisp code that would transpile to JavaScript*.
 
-![](http://40ants.com/weblocks/_images/quickstart-check-task.gif)
+![](assets/weblocks-quickstart-check-task.gif)
 
 Weblocks is an old framework developed by Slava Akhmechet, Stephen
 Compall and Leslie Polzer. After nine calm years, it is seeing a very

websockets.md

@@ -216,7 +216,7 @@ ahead and start it, this time on port `8080`:
 Now open up two browser tabs and point them to `http://localhost:8080` and you
 should see your chat app!
 
-<img src="https://raw.githubusercontent.com/cbeo/resource-dump/master/lisp-chat.gif"
+<img src="assets/sockets-lisp-chat.gif"
      width="470" height="247"/>
 
 ## All The Code