well presented, beautiful cover, full of tricks. Presentation airy, colorful and clear content .... important to me. lots of little pictures ... useful or not, they make very pleasant reading! the only "small" downside is the weight of the leaves ... the pages of this book are very fine, and it's weird about it (I was used to the older encyclopedias where the leaves were thicker and more solids) ... where a 4 star That said, I love !!!
