Pentagonal geometry is often found in nature as the logarithmic spiral

You can see in the images how much they can vary

Approximately 250 pages (500 sides) of A5 sized

Bound in a single thick piece of vegetable tanned leather this journal has our Harvest Moon design hand tooled onto the cover

This is the Earthworks Journals A5 (Medium) Rugged Blue Leather Wraparound Journal

A6 Standard Size Brown Leather Journal, Celtic Triquetra Design - Hand Bound Personalisation (Add details at checkout):No personalisation Pentagonal geometry is often foundFree Standard UK Shipping A6 Size Brown Vegetable Tanned Leather Hand Tooled Design Hand Bound Pages Recycled Unlined Paper Free Personalisation (See below) D e s c r i p t i o n This is the Earthworks Journals A6 brown leather journal with our Celtic Triquetra design hand tooled onto the cover. It is bound in a single thick piece of vegetable tanned leather and has a beautiful, antiqued brown finish which picks out the design and natural markings in