This is the thirteenth book from Granada for the BBC Micro, and I think they're getting a bit short of ideas. For your £7, you get 70 listings of procedures and functions and an introductory chapter explaining what they are.

Dealing with graphics first, there are procedures to draw circles, animate and rotate characters, and simulate an explosion. The best one is for scrolling the screen sideways or downwards. The three sound effects programs simulate gunfire, a spaceship and the BBC time pips. There are procedures that do strange things with lists of words and - tricky one, this - a procedure to calculate averages.

The functions cover mainly mathematical and string applications: anagrams, number bases, factorials, yes/no validation and some functions to read the various 6502 registers.

None of the procedures or functions is particularly novel and some are very trivial. I typed in half a dozen of each and found two mistakes: ENDPROC had been missed off one procedure and in another the Owens got their formal and actual parameters confused. Still, there might be a few routines here that take your fancy.