The I Ching is the world's oldest oracle; it's a book of Chinese wisdom; it's the accumulated experience of over 2,500 years of diviners and sages, and beyond that of unimaginably ancient oral traditions; it's the voice that has been offering people help and wise, genial guidance for generations.

The I Ching as you buy it today will be a collection of texts - a wonderful mixture of imagery and advice, philosophy and poetry - divided into 64 'chapters'. These are the 64 hexagrams, which means simply a pile of six lines, either broken or solid.

A good long-sleeved shirt is a men's fashion must-have. Add this wardrobe essential to your collection, and have a great to-go option for a casual look, or a relaxed business outfit.

• 100% cotton
• Sport Grey is 90% cotton, 10% polyester
• Classic fit with long sleeves and rib cuffs
• Pre-shrunk jersey knit
• Seamless double-needle 7⁄8'' (2.2 cm) collar
• Double-needle bottom hem
• Taped neck and shoulders
• Quarter-turned to avoid crease down the middle