A: Much thought was given to the placement of the state names on the page edge tabs - Michigan - Ohio - Kentucky - Tennessee - Georgia - which, because our southbound pages are read from the bottom to the top, caused us a bit of difficulty when designing the book. And we thought about it long and hard before going to print. The tabs printed on the edge of our pages are there to provide a quick reference to the maps for each I-75 state, when the book is closed and viewed from the side. The map pages where we cross a state border of course, requires two page tabs - one for each state.
Because most snowbirds start using "Along I-75" at the beginning of their drive south to Florida, the physical placement of the page edge tabs for the entire book was set in southbound sequence, starting with Michigan at the top and running down the side of the pages to Georgia. Each state tab is measured a certain distance from the top of the page, and has to be consistent on all tabbed pages, so that a person looking for Tennessee knows that it is always the 4th tab from the top.
In most normal map books, this would not present a problem since normal maps always have north at the top of the page.
But Along I-75" is not normal. We turn our southbound pages upside-down so they are much easier to use as you drive. South is at the top of the page so that everything printed on the right hand side of the map, appears on the right hand side of the road (and vice versa) as you drive south. This of course, occasionally conflicts with the fixed position of our page side tabs.
See map 8 for example. Starting at the bottom, the page covers Michigan's 21 miles to the Toledo border, then enters Ohio at mile marker 211 and leaves the page at the top, at Ohio mm 207. But because our page edge tabs are "fixed" into a physical pattern, we must list Ohio before Michigan as you read up the page. This also happens on map page 17, 31 and 45.
It would have been inconsistent if we had relocated the side tabs to match the actual states on that map page, so we had to compromise as follows:
Side (page edge) tabs are used solely as a reference to get a reader to a page. Once on the page, on the odd occasion, the page edge tabs may not necessarily relate to the material presented within the page's sequence of contents.
We gave a lot of thought to this before sending the book to press. If anybody has a better idea - we would love to hear it.