"A picture is worth a thousand words" goes the English saying, but too often whiteboard sketches and notebook drawings quickly lose their meaning after they are drawn. If you have ever looked at a technical diagram and thought "these squiggles are meaningless!", then this book is for you.

This book provides a simple, proven approach to drawing clear, memorable technical diagrams. Although the focus is on whiteboard sketches, the principles apply to chalkboards, paper notebooks, and even digital tools. the techniques are applicable to a wide range of technical disciplines, including:

• software architecture
• systems architecture
• business process modelling
• chemical engineering
• mechanical engineering and robotics
• electronic and electrical engineering

The approach is designed to be suitable for people with a range of learning and visual needs, including:

• people with dyslexia and other specific learning differences
• people with visual impairments in colour or acuity
• people who learn visually or audibly 
• people who like to categorise in order to understand

The techniques lead to diagrams that still make sense many months or years after drawing them. The diagrams tend to be clear enough to include directly in slide decks and even official documentation. The techniques make it simple and quick to redraw diagrams if needed, without having to begin from the very start each time.