I have just finished The Tiger That Isn’t Seeing Through a World of Numbers by Michael Blastland and Andrew Dilnot. It is an excellent introduction to statistics without formulae and highlights the innumeracy of ministers, civil servants, journalists and indeed all of us. But it helps to redress the situation by discussing in simple terms key statistical concepts that are easily misunderstood. For example, how averages can be misleading, how any data hides a more complex picture, and natural variation in results over time. Often we are not critical because we want to believe what we think the numbers say.
I will definitely be recommending this book to people who struggle with statistics.