This book proposes three basic keys to language learning:
1. Learn pronunciation first
2. Don’t translate
3. Use spaced repetition systems (an “SRS”, like Anki)
It also has some other things building on those, but the main focus is on using an SRS to achieve your goals. Helpfully, it goes into how to use what are basically flash cards to learn more complex mnemonic devices, as well as abstract concepts and grammar. This is really where the book shines. It could however benefit from more non-English examples just to act as full L2 example cards. It does, surprisingly and refreshingly, argue for the benefits of creating your own cards instead of downloading or reusing someone else’s. Overall, a lot of practical language-learning advice that I look forward to experimenting with.