diff --git a/bmcs_course/1_1_elastic_stiffness_of_the_composite.ipynb b/bmcs_course/1_1_elastic_stiffness_of_the_composite.ipynb
index 6874bb49b10a985fde88ed5f3d4b2f2f16c3a353..c7f2dffc50c34c57b02c11dcf8043a61c5f2159a 100644
--- a/bmcs_course/1_1_elastic_stiffness_of_the_composite.ipynb
+++ b/bmcs_course/1_1_elastic_stiffness_of_the_composite.ipynb
@@ -168,7 +168,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.2"
+   "version": "3.8.3"
   },
   "toc": {
    "base_numbering": 1,
diff --git a/bmcs_course/2_1_PO_LF_LM_RG.ipynb b/bmcs_course/2_1_PO_LF_LM_RG.ipynb
index 585709aaa2eec62f21dea8ef87489c1a79a0a3be..99789988bda0ae6fd632cf3f9ada8724d2d6a90a 100644
--- a/bmcs_course/2_1_PO_LF_LM_RG.ipynb
+++ b/bmcs_course/2_1_PO_LF_LM_RG.ipynb
@@ -1961,4 +1961,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 4
-}
+}
\ No newline at end of file
diff --git a/bmcs_course/4_2_BS_EP_SH_I_A.ipynb b/bmcs_course/4_2_BS_EP_SH_I_A.ipynb
index 726710c52a8e5623bac409fc41752963a548d0e7..a37b424762a43e9b9f8c41408a7de6cd8afe064c 100644
--- a/bmcs_course/4_2_BS_EP_SH_I_A.ipynb
+++ b/bmcs_course/4_2_BS_EP_SH_I_A.ipynb
@@ -1427,7 +1427,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.2"
+   "version": "3.8.3"
   },
   "toc": {
    "base_numbering": 1,
diff --git a/bmcs_course/5_1_Introspect_Damage_Evolution_Damage_initiation.ipynb b/bmcs_course/5_1_Introspect_Damage_Evolution_Damage_initiation.ipynb
index d66efcfb822506b30477a53df05b737480551aba..d75ec87a1ec245bd0cd5a647d5fc73bac0cb2e80 100644
--- a/bmcs_course/5_1_Introspect_Damage_Evolution_Damage_initiation.ipynb
+++ b/bmcs_course/5_1_Introspect_Damage_Evolution_Damage_initiation.ipynb
@@ -1073,7 +1073,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.2"
+   "version": "3.8.3"
   },
   "toc": {
    "base_numbering": 1,
diff --git a/index.ipynb b/index.ipynb
index 666aa1000efe7fab4ad3656f32335831cf59601d..b123cdf25a2eeb6a1f30887c19c599358173e965 100644
--- a/index.ipynb
+++ b/index.ipynb
@@ -4,7 +4,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# **BMCS COURSE**\n",
+    "# **Brittle-Matrix Composite Structures**\n",
     "\n",
     "Institute of Structural Concrete; @author: Rostislav Chudoba, Abedulgader Baktheer"
    ]
@@ -13,7 +13,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "## Explore the BMCS landscape"
+    "## Expedition investigating the BMCS landscape"
    ]
   },
   {
@@ -60,36 +60,58 @@
    "source": [
     "| |   |   |   | \n",
     "|-|-|-------|------| \n",
-    "| ![image-15.png](attachment:image-15.png) | ![image-4.png](attachment:image-4.png)  | ![image-2.png](attachment:image-2.png) | ![image.png](attachment:image.png) | \n",
-    "| ![image-14.png](attachment:image-14.png) | [![image-6.png](attachment:image-6.png)](pull_out/pull_out.ipynb) | ![image-7.png](attachment:image-7.png)| [![image-8.png](attachment:image-8.png)](mkappa/mkappa.ipynb) |\n",
-    "| ![image-13.png](attachment:image-13.png)  | [![image-9.png](attachment:image-9.png)](tension/fragmentation.ipynb) | [![image-10.png](attachment:image-10.png)](bending/bending_3pt.ipynb) | ![image-11.png](attachment:image-11.png) |"
+    "| ![image-15.png](attachment:image-15.png) | ![image-4.png](fig/reinforcement.png)  | ![image-2.png](fig/bond.png) | ![image.png](fig/matrix.png) | \n",
+    "| ![image-14.png](attachment:image-14.png) | [![image-6.png](fig/pullout.png)](pull_out/pull_out.ipynb) | ![image-7.png](fig/crack_bridge.png)| [![image-8.png](fig/mkappa.png)](mkappa/mkappa.ipynb) |\n",
+    "| ![image-13.png](attachment:image-13.png)  | [![image-9.png](fig/tension.png)](tension/fragmentation.ipynb) | [![image-10.png](fig/bending.png)](bending/bending_3pt.ipynb) | ![image-11.png](fig/compression.png) |"
    ]
   },
   {
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "## Guided tours through BMCS"
+    "## Guided tours provided through BMCS landscape"
    ]
   },
   {
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "1. Mixture rule (effective composite stiffness)\n",
-    "2. Constant bond (friction, pull-out, crack-bridge, multiple cracking)\n",
-    "3. Nonlinear bond (hardening, softening -> failure modes: anchorage, cracking)\n",
-    "4. Plastic bond behavior (irreversibility ->  energy dissipation)\n",
-    "5. Damage bond behavior (2D sheet debonding)\n",
-    "6. Concrete cracking and yielding (bended cross section)\n",
-    "7. Beam deflection - comparison wth EC2 and Model Code"
+    "| No. | Title |\n",
+    "|- | - |\n",
+    "| **Tour 1:** | Mixture rule (effective composite stiffness) |\n",
+    "| **Tour 2:** | Constant bond (friction, pull-out, crack-bridge, multiple cracking) | \n",
+    "| **Tour 3:** | Nonlinear bond (hardening, softening -> failure modes: anchorage, cracing) |\n",
+    "| **Tour 4:** | Plastic bond behavior (irreversibility ->  energy dissipation) |\n",
+    "| **Tour 5:** | Damage bond behavior (2D sheet debonding) |\n",
+    "| **Tour 6:** | Concrete cracking and yielding (bended cross section) |\n",
+    "| **Tour 7:** | Beam deflection - comparison wth EC2 and Model Code |"
    ]
   },
   {
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "## Skills needed for a BMCS traveller"
+    "## Vehicle used to move forward quickly through BMCS"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "| Engine and wheels | Further information |\n",
+    "|-- |---|\n",
+    "| Jupyter notebooks |   |\n",
+    "| OpenWebApps |   |\n",
+    "| Elementary syntax of Python language |  |\n",
+    "| Plotting tools | `matplotlib`  |\n",
+    "| Computer Algebra System | `sympy`  |"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Knowledge and skills developed during the BMCS expedition"
    ]
   },
   {
@@ -267,7 +289,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.2"
+   "version": "3.8.3"
   },
   "toc": {
    "base_numbering": 1,
diff --git a/mkappa/mkappa.ipynb b/mkappa/mkappa.ipynb
index c74cd321547d4cb1f18e5c79d33fb25ce1b14864..22f4f4ffa8be9854b2db9d8daf8b21249720925c 100644
--- a/mkappa/mkappa.ipynb
+++ b/mkappa/mkappa.ipynb
@@ -3,7 +3,7 @@
   {
    "cell_type": "code",
    "execution_count": 1,
-   "id": "stock-regard",
+   "id": "funky-illustration",
    "metadata": {},
    "outputs": [],
    "source": [
@@ -13,7 +13,7 @@
   {
    "cell_type": "code",
    "execution_count": 2,
-   "id": "dietary-software",
+   "id": "fresh-century",
    "metadata": {},
    "outputs": [],
    "source": [
@@ -28,7 +28,7 @@
   {
    "cell_type": "code",
    "execution_count": 3,
-   "id": "chief-shield",
+   "id": "bigger-extent",
    "metadata": {},
    "outputs": [],
    "source": [
@@ -38,7 +38,7 @@
   {
    "cell_type": "code",
    "execution_count": 4,
-   "id": "defensive-bidder",
+   "id": "cutting-finnish",
    "metadata": {},
    "outputs": [],
    "source": [
@@ -55,21 +55,55 @@
   {
    "cell_type": "code",
    "execution_count": 5,
-   "id": "hairy-armor",
+   "id": "champion-badge",
    "metadata": {},
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "eta 0.3204545454545455\n",
+      "eta 0.3204545454545455\n"
+     ]
+    },
+    {
+     "data": {
+      "application/vnd.jupyter.widget-view+json": {
+       "model_id": "3baa17bb26204b77affff3cfeb011d5e",
+       "version_major": 2,
+       "version_minor": 0
+      },
+      "text/plain": [
+       "Canvas(toolbar=Toolbar(toolitems=[('Home', 'Reset original view', 'home', 'home'), ('Back', 'Back to previous …"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "data": {
+      "application/vnd.jupyter.widget-view+json": {
+       "model_id": "bb5852245b0d475fb7172ddce140f54f",
+       "version_major": 2,
+       "version_minor": 0
+      },
+      "text/plain": [
+       "Plot(antialias=3, axes=['x', 'y', 'z'], axes_helper=1.0, background_color=16777215, camera=[2, -3, 0.2, 0.0, 0…"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
       "M - k recalculated\n"
      ]
     },
     {
      "data": {
       "application/vnd.jupyter.widget-view+json": {
-       "model_id": "b8f6a77fe3384b15bf9011963897c241",
+       "model_id": "19474e03dd7c4da7a771b89e335fdfd9",
        "version_major": 2,
        "version_minor": 0
       },
@@ -88,7 +122,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "id": "particular-healing",
+   "id": "difficult-retail",
    "metadata": {},
    "outputs": [],
    "source": []
diff --git a/tension/fragmentation.ipynb b/tension/fragmentation.ipynb
index 220c0bf986c2059674da0d77e53f66c83101a655..74cc16116e9f45b1bccb8411fef56e7b5ab53612 100644
--- a/tension/fragmentation.ipynb
+++ b/tension/fragmentation.ipynb
@@ -3,7 +3,7 @@
   {
    "cell_type": "code",
    "execution_count": 1,
-   "id": "casual-rotation",
+   "id": "hybrid-federation",
    "metadata": {},
    "outputs": [],
    "source": [
@@ -14,7 +14,7 @@
   {
    "cell_type": "code",
    "execution_count": 2,
-   "id": "stylish-curtis",
+   "id": "patient-adjustment",
    "metadata": {},
    "outputs": [],
    "source": [
@@ -24,13 +24,13 @@
   {
    "cell_type": "code",
    "execution_count": 3,
-   "id": "raising-cinema",
+   "id": "headed-conservative",
    "metadata": {},
    "outputs": [
     {
      "data": {
       "application/vnd.jupyter.widget-view+json": {
-       "model_id": "14a66af4d1a642409783059e098d9dd0",
+       "model_id": "08cede9fcb5d4bf5984fdb2ad37e3271",
        "version_major": 2,
        "version_minor": 0
       },
@@ -49,7 +49,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "id": "committed-distance",
+   "id": "solid-athens",
    "metadata": {},
    "outputs": [],
    "source": []