The title of this work is an index of the performance. It is a collection of useful instructions for a young tradesman. The world is grown so wise of late, or (if you will) fancy themselves so, are so opiniatre, as the French well express it, so self-wise, that I expect some will tell us beforehand they know every thing already, and want none of my instructions; and to such, indeed, these instructions are not written. Had I not, in a few years’ experience, seen many young tradesmen miscarry, for want of those very cautions which are here given, I should have thought this work needless, and I am sure had never gone about to write it; but as the contrary is manifest, I thought, and think still, the world greatly wanted it. And be it that those unfortunate creatures that have thus blown themselves up in trade, have miscarried for want of knowing, or for want of practising, what is here offered for their direction, whether for want of wit, or by too much wit, the thing is the same, and the direction is equally needful to both.