Learn the chart's people, nations and dates
Tap the card to turn it. If you knew it, it comes back later; if not, it comes back soon. Your progress stays on this device, so you can stop and pick up again.
Read the whole chart, stretch by stretch
This site lets you wander; the book walks you through. All seventeen stretches on full spreads at 75% of the real chart, numbered pins explained in order, Adams' Six Keys on every page and a study page for every stretch. Large format, full color.