Free 168 page Harden's Pub & Bar Guide (RRP £6.99) with the London Evening Standard (from selected vendors so I'm guessing WH Smiths as well as the Standard sellers etc). All week while stocks last. No voucher or token required
Just got one from news stand in Wanary Wharf DLR - it has useful maps but no photos. Good for planning pub crawls
Great book for Londoners or visitors for nothing !
(found in todays Metro, page 20)