Some books speak to you more than others. Some teaching methods/explanations work better at one time than others. Some days things seem to be blindingly clear and other days the same words can be a fog. It is the nature of things.
I was reminded of this yesterday when my middle was struggling to understand her math. It took her awhile to figure out that K simply means a constant number, and then to come up with a method for finding K and figuring out the formula. We worked together and the clouds disappeared from her eyes. My fingers are very crossed that her test goes fine today.
The post brought a reprint of A Week at Waterloo -- Magdalene de Lancey's first hand account of the battle and her fight to save her husband's life. They had been wed only a few weeks before the battle. The account is said to have inspired Thackerey. Dickens wrote that he should never forget the lightest word of it. Part of the proceeds from this edition goes to support the AFF (Armies Families Federation) Andrew Roberts has written a brilliant introduction.
Anyone who is interested in the Battle of Waterloo should read this book.