I rather regret this book because it is more for someone from the campaign of the city ... more focused on construction or realization of a house or a coffee during ... so he n ' there were only the end of interresting for me, since I am in an apartment building without and garden !!! more in this part of the texts are succins, davantages I knew before reading it by going on the internet ... it can be a good book for a person from the country that is just beginning to question how and why no longer depend of the system ... but alas no more ... But the subject is vast !! can be the author considers there a sequel ??? what better understand ....