diff --git a/README.md b/README.md
index 7d7ed98..42fcf70 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# security-engineering-3rd-edition-ebook ![](https://img.shields.io/badge/Chapters%20Published-24%2F26-brightgreen)
+# security-engineering-3rd-edition-ebook ![](https://img.shields.io/badge/Chapters%20Published-25%2F26-brightgreen)
 
 ![third-edition-security-engineering-book-cover](cover-thumb.jpg)
 
@@ -36,7 +36,8 @@ See `titles.txt` for the bookmark titles used by the script.
 -   Chapter 21: Network Attack and Defence
 -   Chapter 22: Phones
 -   Chapter 23: Electronic and Information Warfare
--   Chapter 26: Surveillance or Privacy?
+-   Chapter 25: Surveillance or Privacy?
+-   Chapter 26: Managing the Development of Secure Systems
 -   Bibliography
 
 ## How to generate the book?
@@ -72,8 +73,7 @@ This also requires `qpdf` to be installed.
 
 `--download-cover-image`
 
-Download the cover image. The repo already has a `cover.pdf` file which is used by default. This option will download the cover image and convert
-it to `pdf` yet again. Do this if the cover URL changes. Requires `imagemagick` to be installed.
+Download the cover image. The repo already has [a `cover.pdf` file which](https://www.cl.cam.ac.uk/~rja14/Papers/SEv3-cover.pdf) is used by default. Do this if the cover URL changes. Requires `wget` to be installed.
 
 ## Support the Authors
 
diff --git a/cover.pdf b/cover.pdf
index 702d4a5..4508e98 100644
Binary files a/cover.pdf and b/cover.pdf differ
diff --git a/generate.sh b/generate.sh
index c117b2d..36ecfc2 100755
--- a/generate.sh
+++ b/generate.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-COVER_URL=https://www.cl.cam.ac.uk/~rja14/Papers/SEv3-cover.jpg
+COVER_URL=https://www.cl.cam.ac.uk/~rja14/Papers/SEv3-cover.pdf
 FINAL_PDF=security-engineering-3rd-edition.pdf
 INPUT_FILE="urls.txt"
 
@@ -18,9 +18,8 @@ assert_installed wget pdftk
 if [[ $@ == *'--download-cover-image'* ]]; then
   echo "Downloading cover image"
   assert_installed convert
-  wget --quiet --timestamping "$COVER_URL" --output-document cover.jpg
-  convert cover.jpg cover.pdf
-  echo "Cover Image downloaded and converted to pdf"
+  wget --quiet --timestamping "$COVER_URL" --output-document cover.pdf
+  echo "Cover Image downloaded"
 fi
 
 declare -a FILES_LIST
diff --git a/meta.txt b/meta.txt
index 3a4fe82..211c3b6 100644
--- a/meta.txt
+++ b/meta.txt
@@ -105,10 +105,14 @@ BookmarkTitle: 23. Electronic and Information Warfare
 BookmarkLevel: 1
 BookmarkPageNumber: 656
 BookmarkBegin
-BookmarkTitle: 26. Surveillance or Privacy?
+BookmarkTitle: 25. Surveillance or Privacy?
 BookmarkLevel: 1
 BookmarkPageNumber: 689
 BookmarkBegin
+BookmarkTitle: 26. Managing the Development of Secure Systems
+BookmarkLevel: 1
+BookmarkPageNumber: 737
+BookmarkBegin
 BookmarkTitle: Bibliography
 BookmarkLevel: 1
-BookmarkPageNumber: 736
+BookmarkPageNumber: 779
diff --git a/titles.txt b/titles.txt
index e69afef..85d9072 100644
--- a/titles.txt
+++ b/titles.txt
@@ -22,5 +22,6 @@ Preface
 21. Network Attack and Defence
 22. Phones
 23. Electronic and Information Warfare
-26. Surveillance or Privacy?
+25. Surveillance or Privacy?
+26. Managing the Development of Secure Systems
 Bibliography
diff --git a/urls.txt b/urls.txt
index 85e64ce..c5af7b6 100644
--- a/urls.txt
+++ b/urls.txt
@@ -22,5 +22,6 @@ https://www.cl.cam.ac.uk/~rja14/Papers/SEv3-ch20-feb28.pdf
 https://www.cl.cam.ac.uk/~rja14/Papers/SEv3-ch21-mar17.pdf
 https://www.cl.cam.ac.uk/~rja14/Papers/SEv3-ch22-3jun.pdf
 https://www.cl.cam.ac.uk/~rja14/Papers/SEv3-ch23-may22.pdf
-https://www.cl.cam.ac.uk/~rja14/Papers/SEv3-ch26-dec18.pdf
+https://www.cl.cam.ac.uk/~rja14/Papers/SEv3-ch25-jul10.pdf
+https://www.cl.cam.ac.uk/~rja14/Papers/SEv3-ch26-jul10.pdf
 https://www.cl.cam.ac.uk/~rja14/Papers/SEv3-bib-jan7.pdf