Librarians and professors rejoice. Nothing is trendier this season than a wool jacket, a cardigan and some old-fashioned spectacles. Rollneck jumper by Dolce & Gabbana (enquiries: 2877 5558). Chunky jumper by Ermenegildo Zegna (enquiries: 2868 9638). Glasses (HK$2,300) by Cutler & Gross. Tweed jacket, tweed waistcoat, wool three-quarter-length trousers, shoes and wool briefcase, all by Paul Smith (enquiries: 2523 5868). Rollneck jumper (HK$2,000) by Hugo Boss. Pinstripe shirt, wool trousers with ribbed ankles, knitted tank top and wool blazer, all by Ermenegildo Zegna (enquiries: 2868 9638). Shoes by Paul Smith (enquiries: 2523 5868). Pinstripe suit, pinstripe shirt, knitted tank top, tie and braces, all by Ralph Lauren (enquiries: 2869 0388). Chunky knit cardigan (HK$8,180), silk reindeer-print shirt (HK$5,960) and wool trousers (HK$4,880), all by Gucci. Tie by Ermenegildo Zegna (enquiries: 2868 9638). Fine wool single-breasted suit, shirt and tie, all by Versace (enquiries: 2199 7768). Cable-knit jumper (worn under shirt) by Hugo Boss (enquiries: 2918 1833). Slip-on shoes by Salvatore Ferragamo (enquiries: 2536 9962).