01
Printable cards
Ten pages, US Letter: the toolkit on one sheet, the quick chooser, a teaching script, and four situation cards.
PDF · 10 pages
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The companion
The parts of the book that work better outside the book
Free, with or without a receipt. The same note that opens the book opens each of them.
02
Four Weeks on the Clock, by email
The 28-day plan, one morning at a time.
28 emails
Opens with the launch03
Guided audio
Short tracks in Eric’s voice for the practices that are easier to follow than to read.
MP3 · about 30 minutes
Recording now04
Notes and sources, live
Every study the book cites, chapter by chapter.
Web page · updated
Read it nowThe companion
Get the companion
The printable cards now, the Four Weeks plan by email and the guided audio as they’re released. Free, whether or not you’ve bought the book yet.
No spam, no sharing your address, one-click unsubscribe. If it’s 3 a.m., start with the audio.
Two rules, no exceptions
Never practice any technique on this site while you are driving, operating machinery, or doing anything that needs your full attention. The slow ones can make you drowsy, faster than you’d expect. And never practice a breath-hold, bellows breath, or any vigorous breathing in or near water. Read Before you begin for the doctor’s list and the rest.