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A beautifully illustrated book about the art, science, math, and environmentalism of the Crochet Coral Reef project.
A beautifully illustrated book about the art, science, math, and environmentalism of the Crochet Coral Reef project.
371 backers pledged $33,388 to help bring this project to life.

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    Pledge $10 or more About $10

    We are very grateful for your support.

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    Pledge $45 or more About $45

    EARLY BIRD SPECIAL - USA. You get a numbered first edition copy, signed by Margaret and Christine. USA ONLY. SHIPPING INCLUDED.

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    Reward no longer available 50 backers
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    Pledge $55 or more About $55

    REGULAR ORDER - USA. You get a numbered first edition copy, signed by Margaret and Christine. USA ONLY. SHIPPING INCLUDED.

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    Pledge $65 or more About $65

    EARLY BIRD SPECIAL - INTERNATIONAL. You get a numbered first edition copy, signed by Margaret and Christine. SHIPPING INCLUDED ANYWHERE OUTSIDE USA.

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    Pledge $75 or more About $75

    REGULAR ORDER - INTERNATIONAL. You get a numbered first edition copy, signed by Margaret and Christine. SHIPPING INCLUDED ANYWHERE OUTSIDE USA.

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    Limited 14 backers
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    Pledge $100 or more About $100

    EUCLIDEAN DONOR - USA: You get a numbered first edition copy, signed by Margaret and Christine. Plus we'll put your name in the book on the Euclidean Donors page. USA ONLY. SHIPPING INCLUDED.

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    Pledge $120 or more About $120

    EUCLIDEAN DONOR - INTERNATIONAL: You get a numbered first edition copy, signed by Margaret and Christine. Plus we'll list your name in the book on the Euclidean Donors page. SHIPPING INCLUDED ANYWHERE OUTSIDE USA.

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    Pledge $200 or more About $200

    HYPERBOLIC DONOR: You get a numbered first edition copy, signed by Margaret and Christine. Plus we'll list your name in the book on the SPECIAL DONORS PAGE under the Hyperbolic category. Plus a signed copy of our book "A Field Guide to Hyperbolic Space". SHIPPING INCLUDED ANYWHERE IN THE WORLD.

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    Pledge $500 or more About $500

    ULTRAPARALLEL DONOR: You get a numbered first edition copy, signed by Margaret and Christine. Plus we'll list your name in the book SPECIAL DONORS PAGE under the Ultraparallel category. You are guaranteed to get one of the first 50 numbered books, plus an additional copy. Plus a signed copy of our book "A Field Guide to Hyperbolic Space". SHIPPING INCLUDED ANYWHERE IN THE WORLD.

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    Pledge $1,000 or more About $1,000

    LOBACHEVSKIAN DONOR: You get a numbered first edition copy, signed by Margaret and Christine. Plus we'll list your name in the book on the SPECIAL DONORS PAGE under the Lobachevskian category. You are guaranteed to get one of the first 20 numbered books, plus an additional copy. Plus a signed copy of our book "A Field Guide to Hyperbolic Space". Plus one of a Limited Edition set of crochet hyperbolic models. SHIPPING INCLUDED ANYWHERE IN THE WORLD.

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    Pledge $2,000 or more About $2,000

    GAUSSIAN DONOR: You get a numbered first edition copy, signed by Margaret and Christine. Plus we'll list your name in the book on the SPECIAL DONORS PAGE, under the Gaussian category. You are guaranteed to get one of the first 10 numbered books, plus an additional copy. Plus a signed copy of our book "A Field Guide to Hyperbolic Space". Plus one of a Limited Edition set of crochet hyperbolic models. SHIPPING INCLUDED ANYWHERE IN THE WORLD.

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