Bicycle Today is a periodical published by TBG in Taiwan. TBG may stand for 'Taiwan Bicycle Group'.

I mainly know Bicycle Today for its massive annual advertorial directories of Taiwanese bicycles and bicycle parts. Before the internet these tomes were essential reading for anyone working in the cycle trade. If you want to carefully select a budget headset from 20+ pages of near identical models all slightly mis-described in less-than-perfect english - then this is the book for you.

These annual directories had the letters 'TBG' writ large on the front cover, and so, inevitably, came to be know as the 'Telephone Book of Guff'.