Very good book for those who want to know about the wood. A first part which explains the tree anatomy, cell structure, wire and grain, different drills, different flow rates ... all this in about thirty pages. And the second part, with different species. A page by 1/3 of the page, a photo of worked wood, the rest of the page, a summary of generalities, the appearance, properties, employment, geographical distribution. Exactly what I wanted.