There's a discussion on Facebook at the moment about this annual cover so I thought I'd expand upon it here. This memorable cover to The Beano Book 1970 was painted by Dave Sutherland, who was the regular cover artist on the Beano annuals at that time (and for many years afterwards). He still draws The Bash Street Kids in The Beano every week of course, and this year will be his 53rd year on the strip!
The interesting thing about this annual cover is that the week the book was published, that week's Beano comic (No.1416, dated September 6th 1969) tied in with it, showing what happened next! A rare British comics crossover. Although the book cover was by Dave Sutherland, the strip on the weekly was by Biffo's regular artist Dudley Watkins. Sadly, by the time this saw print, Mr.Watkins had passed away suddenly the previous month.
That same issue also carried an ad for the latest Dennis the Menace annual on the back page, with a vague link to that week's Dennis strip drawn by Davey Law.