diff --git a/book/design_workflow/general_design_guide.ipynb b/book/design_workflow/general_design_guide.ipynb
index 525531b..ae4df53 100644
--- a/book/design_workflow/general_design_guide.ipynb
+++ b/book/design_workflow/general_design_guide.ipynb
@@ -4,154 +4,81 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# General design guide",
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
+    "# General design guide\n",
+    "\n",
     "## The design process\n",
     "\n",
-    "The design process is part of the life cycle of a structure: the ‘idea-phase’, 
-     the ‘design-phase’, the ‘construction phase’, the ‘use and maintenance phase’, 
-     and the ‘demolition phase’. The structural engineer acts in the ‘design phase’. 
-     The terms ‘initiative’, ‘project definition’, ‘concepts’, ‘preliminary design’, 
-     and ‘verification of structural safety’ will be explained shortly below.\\\n"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
+    "The design process is part of the life cycle of a structure: the ‘idea-phase’, \n",
+    "the ‘design-phase’, the ‘construction phase’, the ‘use and maintenance phase’, \n",
+    "and the ‘demolition phase’. The structural engineer acts in the ‘design phase’. \n",
+    "The terms ‘initiative’, ‘project definition’, ‘concepts’, ‘preliminary design’, \n",
+    "and ‘verification of structural safety’ will be explained shortly below.\n",
+    "\n",
     "## Project definition\n",
     "\n",
-    "To define the project, one first drafts
-     a plan of action (strategy). This
-     determines how to proceed in this
-     phase, what the results should be and
-     the criteria to which the result of this
-     phase should be compared. Just like
-     in the previous phase various aspectstudies
-     need to be done. Eventually
-     this leads to the formulation of a report
-     containing all basic assumptions
-     concerning the structural design. This
-     forms a supplement to the PoR.\\\n"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
+    "To define the project, one first drafts a plan of action (strategy). This\n",
+    "determines how to proceed in this phase, what the results should be and\n",
+    "the criteria to which the result of this phase should be compared. Just like\n",
+    "in the previous phase various aspectstudies need to be done. Eventually\n",
+    "this leads to the formulation of a report containing all basic assumptions\n",
+    "concerning the structural design. This forms a supplement to the PoR.\n",
+    "\n",
     "## Concepts\n",
     "\n",
-    "In this phase too several studies
-     have to be performed. The designer
-     makes several ‘structural’ concepts.
-     To make a sensible design, he
-     first analyses the force flow in both
-     horizontal and vertical direction. Also
-     the ability of the structure to retain
-     its shape and place is investigated
-     as well as the connections between
-     different elements and parts of the
-     building. After feedback from the
-     structural assumptions at least two of
-     the concepts are chosen for further
-     analysis. With the aid of design tools
-     (rules of thumb, diagrams and tables)
-     the overall dimensions of the structure
-     (including stability measures) are
-     determined and critical connections
-     are studied for feasibility. The
-     sections on different materials contain
-     information on structural elements
-     (such as precast conrete beams,
-     hollow core slabs etc.) and tables
-     with available (steel) profiles to come
-     to reasonable dimensions. Already
-     in this stage it is wise to orientate on
-     different foundation possibilities as the
-     foundation can have influence on the
-     rest of the structure. The section on
-     foundations can provide the necessary
-     information. Although the load bearing
-     structure is designed, this phase is not
-     yet finished. Finally the designer needs
-     to look into possible façades and roof
-     elements. Now a choice can be made
-     between the different concepts based
-     on a multi criteria analysis. The criteria
-     are based on the PoR and structural
-     assumptions.\\\n"      
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
+    "In this phase too several studies have to be performed. The designer makes several\n",
+    "‘structural’ concepts. To make a sensible design, he first analyses the force flow\n",
+    "in both horizontal and vertical direction. Also the ability of the structure to retain\n",
+    "its shape and place is investigated as well as the connections between different\n",
+    "elements and parts of the building. After feedback from the structural assumptions\n",
+    "at least two of the concepts are chosen for further analysis. With the aid of design\n",
+    "tools (rules of thumb, diagrams and tables) the overall dimensions of the structure\n",
+    "(including stability measures) are determined and critical connections are studied\n",
+    "for feasibility. The sections on different materials contain information on\n",
+    "structural elements (such as precast conrete beams, hollow core slabs etc.)\n",
+    "and tables with available (steel) profiles to come to reasonable dimensions. Already\n",
+    "in this stage it is wise to orientate on different foundation possibilities as\n",
+    "the foundation can have influence on the rest of the structure. The section on\n",
+    "foundations can provide the necessary information. Although the load bearing\n",
+    "structure is designed, this phase is not yet finished. Finally the designer needs\n",
+    "to look into possible façades and roof elements. Now a choice can be made between\n",
+    "the different concepts based on a multi criteria analysis. The criteria are based\n",
+    "on the PoR and structural assumptions.\n",
+    "\n",
     "## Preliminairy structural design\n",
     "\n",
-    "Now all the dimensions of the chosen
-     structure can be determined. Again
-     the sections on the different materials
-     can be helpful. Make sure, also in
-     this preliminairy design, that stability
-     of your structure is ensured. It is a
-     good idea to search for alternative
-     possibilities for the foundation and
-     connecting structure to prevent
-     surprises in the final design stage. Also
-     the building envelope deserves some
-     attention. Use the different examples
-     given in the later chapters.\\\n"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
+    "Now all the dimensions of the chosen structure can be determined. Again the sections\n",
+    "on the different materials can be helpful. Make sure, also in this preliminairy\n",
+    "design, that stability of your structure is ensured. It is a good idea to search\n",
+    "for alternative possibilities for the foundation and connecting structure to prevent\n",
+    "surprises in the final design stage. Also the building envelope deserves some\n",
+    "attention. Use the different examples given in the later chapters.\n",
+    "\n",
     "## Preliminary design\n",
     "\n",
-    "In this phase a further analysis
-     of the strength, behaviour of the
-     structure is made. Also the stability
-     is checked, and necessary stability
-     measures are added. To do this, quick
-     calculations are made with simplified
-     load combinations. The section on
-     mechanics offers the necessary
-     formulas and ‘forget-me-nots’. More
-     attention is given to the foundation
-     of the structure. Calculate the total
-     vertical load and design a transition
-     structure (which transfers the loads
-     from the main load bearing structure to
-     the foundation). Also a further analysis
-     is made of the possible façades, roof
-     elements and other building finishes
-     needs to be made. How are the
-     building finishes connected to the load
-     bearing structure?\\\n"
+    "In this phase a further analysis of the strength, behaviour of the structure\n",
+    "is made. Also the stability is checked, and necessary stability measures are added.\n",
+    "To do this, quick calculations are made with simplified load combinations. The\n",
+    "section on mechanics offers the necessary formulas and ‘forget-me-nots’. More\n",
+    "attention is given to the foundation of the structure. Calculate the total vertical\n",
+    "load and design a transition structure (which transfers the loads from the main\n",
+    "load bearing structure to the foundation). Also a further analysis is made of the\n",
+    "possible façades, roof elements and other building finishes needs to be made. How\n",
+    "are the building finishes connected to the load bearing structure?\n",
+    "\n",
+    "## Verification of the structural safety and servicability\n",
+    "\n",
+    "The final preliminairy design of which the final dimensions are now determined,\n",
+    "has to be checked with a structural code. In Europe this is the Eurocode. The\n",
+    "different sections on steel, timber, concrete and foundations contain the\n",
+    "necessary information to perform the check.\n"
    ]
   },
   {
    "cell_type": "markdown",
    "metadata": {},
-   "source": [
-    "## Verification of the structural safety and servicability\n",
-    "\n",
-    "The final preliminairy design of
-     which the final dimensions are now
-     determined, has to be checked with a
-     structural code. In Europe this is the
-     Eurocode. The different sections on
-     steel, timber, concrete and foundations
-     contain the necessary information to
-     perform the check.\\\n"
-   ]
-  },
+   "source": []
+  }
+ ],
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   "kernelspec": {
    "display_name": "Python 3",
@@ -177,4 +104,7 @@
     "version_minor": 0
    }
   }
- }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 4
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