See also:
Morocco Overland 4
Updates & Corrections current edition
Updates & Corrections (old edition)

Edition 4’s 70-odd largely new routes are now spread across eight regions of southern Morocco (above). Each route has a description following the same proven format but with improvements:

• intros are simplified and shortened
• the waypoint format is improved (see below)
• a third text colour is used when referring to other branching tracks
• All routes verified on or added to the free OSM database

Combined with OSM mapping, it should make the book even easier to use.

What, no waypoint downloads?!
Offering a few key downloadable waypoints was an OK idea when Morocco Overland was first published in 2009. Even then, in most cases you only really needed a route’s start point because, unlike the Sahara, once you’re on the way, Moroccan tracks are regularly used by locals and dead easy to follow.
Now that mapping has improved and the way we navigate has become easier, they won’t be supplied for Edition 4. Most want tracklogs and masses of such data already exists online for free. And as already mentioned: all M4 routes have been verified on the free OSM database, corrected where necessary, or added if they did not exist. Months later I am now seeing my new routes appearing on 3rd party Morocco OSM mapping. So the plan worked but note, I do not label OSM tracks with M4 numberings as it is a public resource.
Another big improvement to Morocco 4 is the adoption of decimal degrees (D.D°; eg: 30.0754, -5.4474) for waypoints. It is the default in mobile phones, afaik. Compare it to the old edition’s laborious N30° 04.52′ W05° 26.83′ (DDM) for the same position. When necessary, this makes transcribing a waypoint by hand into a digital device’s touch keypad much less error prone, combining the numbers with just a point, a comma and a hyphen.

With or without waypoints or tracklogs, you still need to engage with navigation, just as you have to concentrate on driving and all the rest. In this era of routable digital maps and smartphones-with-GPS, not everyone appreciates this. Meanwhile the digital map’s ‘go to’ routing function on your device won’t always recognise or even show obscure tracks, or it will tie itself in knots trying.
Download a free GPS map and you won’t need a tracklog, waypoints or even the guide book. Maps using OSM data are free and I’ll say it again: I’ve added, verified or corrected all the routes in Morocco 4 to the master OSM database. I can’t guarantee that my edits won’t be modified by other OSM contributors.

As said, satnav routing functions can be hit and miss along roads, let alone tracks, but I’ve been surprised to see how many obscure routes (or parts of them) are routable on Google. Failing that, just follow the track right under your nose; there’s usually only one.
You can always trace a tracklog off Google’s WYSIWYG aerial imagery, guided by the book’s waypoints, or (more easily but less reliably) use apps like Garmin BaseCamp, combined with imported OS mapping. All are free but, like reading a route description, making tracklogs requires engagement and time. Lacking that, you’ll find over 12,000 free but unedited (ie: random and messy) Moroccan tracklogs on Wikilocs. Some will doubtless align with Morocco Overland routes.