diff --git a/office/csbooks-bin/README b/office/csbooks-bin/README
new file mode 100644
index 0000000000..725d56a3df
--- /dev/null
+++ b/office/csbooks-bin/README
@@ -0,0 +1 @@
+csbooks
diff --git a/office/csbooks-bin/csbooks b/office/csbooks-bin/csbooks
new file mode 100644
index 0000000000..969117dc2d
--- /dev/null
+++ b/office/csbooks-bin/csbooks
@@ -0,0 +1,6 @@
+#!/bin/bash
+
+#ELECTRON=$(locate electron | grep "/usr/bin")
+cd /opt/csBooks/resources || exit
+#"$ELECTRON"
+electron /opt/csBooks/resources/app.asar
diff --git a/office/csbooks-bin/csbooks-bin.SlackBuild b/office/csbooks-bin/csbooks-bin.SlackBuild
new file mode 100644
index 0000000000..50792d96a5
--- /dev/null
+++ b/office/csbooks-bin/csbooks-bin.SlackBuild
@@ -0,0 +1,90 @@
+#!/bin/bash
+
+# Slackware build script for csbooks
+
+# Copyright 2025 Ioannis Anagnostakis GR
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
+#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
+#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+cd $(dirname $0) ; CWD=$(pwd)
+
+PRGNAM=csbooks-bin
+VERSION=${VERSION:-8.5.0}
+SRCNAM=csBooks_"$VERSION"_amd64
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+PKGTYPE=${PKGTYPE:-tgz}
+
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i586 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
+  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
+  exit 0
+fi
+
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+set -e
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+
+
+ar x $SRCNAM.deb
+rm debian-binary control.tar.?z
+tar -xJf data.tar.xz -C "$PKG" 2>/dev/null || \
+tar --use-compress-program=unzstd -xf data.tar.zst -C "$PKG" 2>/dev/null || \
+tar -xzf data.tar.gz -C "$PKG" 2>/dev/null || \
+{ echo "No valid archive found!"; exit 1; }
+
+find "$PKG" -type d -exec chmod 0755 {} +
+
+
+sed -i 's|^Exec=/opt/csBooks/csbooks %U|Exec=csbooks|' "$PKG"/usr/share/applications/csbooks.desktop || exit
+chmod 0644 $PKG/usr/share/applications/csbooks.desktop
+
+mkdir -p "$PKG"/usr/bin
+cp "$CWD/csbooks" "$PKG"/usr/bin
+chmod +x "$PKG"/usr/bin/csbooks
+
+find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
+  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
+
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+cp -r $PKG/usr/share/doc/${PRGNAM%-bin}/* $PKG/usr/doc/$PRGNAM-$VERSION/
+rm -rf $PKG/usr/share/doc
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+cat $CWD/doinst.sh > $PKG/install/doinst.sh
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE
diff --git a/office/csbooks-bin/csbooks-bin.info b/office/csbooks-bin/csbooks-bin.info
new file mode 100644
index 0000000000..df22cad5c4
--- /dev/null
+++ b/office/csbooks-bin/csbooks-bin.info
@@ -0,0 +1,10 @@
+PRGNAM="csbooks-bin"
+VERSION="8.5.0"
+HOMEPAGE="https://caesiumstudio.com/csbooks"
+DOWNLOAD="UNSUPPORTED"
+MD5SUM=""
+DOWNLOAD_x86_64="https://github.com/caesiumstudio/csBooks-updates/releases/download/latest/csBooks_8.5.0_amd64.deb"
+MD5SUM_x86_64="fa27a826b32dbcc431712426220315c2"
+REQUIRES="electron"
+MAINTAINER="Ioannis Anagnostakis"
+EMAIL="rizitis@gmail.com"
diff --git a/office/csbooks-bin/doinst.sh b/office/csbooks-bin/doinst.sh
new file mode 100644
index 0000000000..23e93c7571
--- /dev/null
+++ b/office/csbooks-bin/doinst.sh
@@ -0,0 +1,15 @@
+( cd opt/csBooks/ ; chmod 4755 chrome-sandbox )
+
+if [ -x /usr/bin/update-desktop-database ]; then
+  /usr/bin/update-desktop-database -q usr/share/applications >/dev/null 2>&1
+fi
+
+if [ -x /usr/bin/update-mime-database ]; then
+  /usr/bin/update-mime-database usr/share/mime >/dev/null 2>&1
+fi
+
+if [ -e usr/share/icons/hicolor/icon-theme.cache ]; then
+  if [ -x /usr/bin/gtk-update-icon-cache ]; then
+    /usr/bin/gtk-update-icon-cache -f usr/share/icons/hicolor >/dev/null 2>&1
+  fi
+fi
diff --git a/office/csbooks-bin/slack-desc b/office/csbooks-bin/slack-desc
new file mode 100644
index 0000000000..9885ae844b
--- /dev/null
+++ b/office/csbooks-bin/slack-desc
@@ -0,0 +1,19 @@
+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description.
+# Line up the first '|' above the ':' following the base package name, and
+# the '|' on the right side marks the last column you can put a character in.
+# You must make exactly 11 lines for the formatting to be correct.  It's also
+# customary to leave one space after the ':' except on otherwise blank lines.
+
+           |-----handy-ruler------------------------------------------------------|
+csbooks-bin: csbooks-bin (epub, pdf, mobi book and djvu reader)
+csbooks-bin:
+csbooks-bin: csBooks is epub, pdf, mobi book and djvu reader.
+csbooks-bin: It solves your problems if you need ebook manager,
+csbooks-bin: library manager on linux, best comic book reader,
+csbooks-bin: cbz file reader, cbr file reader etc.
+csbooks-bin:
+csbooks-bin:
+csbooks-bin:
+csbooks-bin: HomePage: https://caesiumstudio.com/csbooks
+csbooks-bin: