Rating: 3 / 5
The Book of the Bivvy jumps about, but mainly covers two subjects: bivvy bags and hillwalking in the UK. Though I've found several books on hillwalking, this is currently the only book I know of focused on bivvy (bivy, bivouack, etc.) shelters.
On the topics covered, Turnbull gives some useful information in an amusing way. He makes clear the trade-off between masochism and freedom inherent in minimalist camping.
The organization is strange. The dialect and cultural references are sometimes difficult to follow. It could easily be titled "The Poetry of the Bivvy." Turnbull's personality mostly covers these oddities making it readable.
If I were planning a UK hillwalking trip, this would make it onto my shelf. As I don't currently have this plan, a brief reading of a copy obtained through Inter-library Loan is enough.