Is anyone familiar with the book? I've just read about it. Apparently it defines 9 different female somatypes:

Balanced Ecto: A light, sharp, alert body with a narrow, shallow, rather short torso; square shoulders; very long, slim limbs; and narrow hips and pelvis.

Endo Ecto: A long, soft, willowy body that is rounder and looser than the balanced ecto and has a less tapered waistline and more prominent and curvaceous hips and belly.

Meso Ecto: A lean, muscular body with a broader, deeper chest tapering more sharply to the waist than in the balanced ecto.

Balanced Meso: A clean-cut, sturdy, athletic body with chest and shoulders strongly dominant over the belly; a low waistline with little indentation; narrow pelvis and hips; strong arms and legs that don't taper; and well-defined muscle contours.

Endo Meso: A compact, rounded, solid body with more curves and a higher, more indented waistline than the balanced meso.

Ecto Meso: A lean, lithe, agile body that is longer and slimmer than the balanced meso.

Balanced Endo: A small-boned, billowy body with soft, gently swelling curves; full, smooth shoulders; high, hourglass waistline; and deeply curved and prominent belly, hips, and thighs.

Meso Endo: More strongly muscled than the balanced endo with more firmly molded and pronounced curves.

Ecto Endo: A slightly leaner version of the balanced ecto with a high but less sharply indented waistline and narrower chest, shoulders, and hips.

Ha, ha, ha. I don't know about you, but I feel that there's no type that would describe me. I can't even make a connection between this and YLF shapes (OK, I know that Balanced Ecto is rectangular, Balanced Meso is inverted triangle-shaped and Balanced Endo looks like an apple-pear hybrid). Not sure about the rest. Why does the book associate big hips with a round belly?!

I don't put much faith in it, but I love finding different body shape systems (yeah, I'm an INTP and I love logical and quasi-logical systems, even if there's little or no science to them. Just for fun).