★★★★★ An essential for your library – a classic of mountain literature
★★★★ Excellent reading - not a classic but worthy of space in your bookshelf
★★★ Worthwhile - borrow from a friend or public library
★★ Of some value - hard work
★ Not recommended
*Based on the following considerations: writing quality and style, historical value, significance in the mountain literature field, interest and enjoyment, the contribution it can make to your overall appreciation of mountains.