Speedball Text Book

While doing more research into the sign painting trade, I was looking for useful books and came across the Speedball Textbook for Lettering and Poster Design. The Speedball pens are not sign painting tools they're for lettering and drawing using ink, they are often used by calligraphers as their 'C style' nib can be used to create thick and thin lines depending on the angle which the pen is held. This book looks like a very useful resource, it gives advice on layout, brush stroke direction, has a lot of illustrated alphabets which would be excellent for reference imagery. The book is currently in its 23rd edition as far as I can see, I might decide to purchase it online but a lot of its pages are displayed on the web already so I will probably look for a free PDF version to download if theres one knocking around.