Build the marriage you want before it starts.

The INVEST study for couples preparing to marry, by Bill & Stephanie Lammers. The same study married couples use, written for the season you are actually in.

Start Session One Already married? Start here

Why now

The habits you build now are the ones you will keep

Most of what a couple brings into a marriage was decided before the wedding: what you each expect without saying, how you handle money you have not merged yet, what you learned about marriage from the homes you grew up in, and who you will let close enough to tell you the truth.

None of that is easier to talk about later. It is only easier to avoid.

Start here

The Snapshot

About six minutes each, on your own phones. Where you are already strong, how you are each wired, and how each of you most feels loved. Understand to Serve.

Take your Snapshot

The sessions

  1. Session One Intro Our story, and why we INVEST
  2. Session Two Choosing The difference between deciding and drifting
  3. Session Three Mission Portrait Uncover your core values, purpose, and vision
  4. Session Four Intrigue Rekindle the fascination that first drew you together
  5. Session Five Where You Came From The home that taught you how people treat each other
  6. Session Six No Say "no" to the good so you can say "yes" to the best
  7. Session Seven Before You Merge Money, while it is still yours and still theirs
  8. Session Eight Venture Out Dream together and map your future
  9. Session Nine Examine Grace-filled communication that draws you closer
  10. Session Ten Who Does What The expectations neither of you has said out loud
  11. Session Eleven Safeguard Protect your relationship — intimacy, boundaries, and your people
  12. Session Twelve Talking About Sex The conversation that only gets harder to start later
  13. Session Thirteen Teachable Spirit Keep growing — and keep investing

Print it

Download the complete workbook

All thirteen sessions, the tools, and room to write — ready to use without the digital workbook. Print the whole book now, or print one session at a time as your group moves through it.

↓ Download the complete workbook

  • Home-printer edition — even margins and lighter on ink, for the printer in your office.
  • Press-ready interior — grayscale with a binding margin, if you are having copies made.
  • Only need one week? Every session page has its own Print just this session link.

Your answers are saved on this device only, separately from the marriage edition. See everything you have written, and take a copy.