1. Introduction: The "Bible" of Mechanical & Civil Engineering For over half a century, "Singer and Pytel" — formally titled Strength of Materials (originally by Ferdinand L. Singer and later co-authored/revised by Andrew Pytel) — has been the gold standard for undergraduate engineering education worldwide. While many modern textbooks exist (Hibbeler, Beer & Johnston, Gere), Singer & Pytel holds a unique place for its rigorous problem-solving approach , elegant free-body diagrams , and a progressive difficulty curve that forces genuine understanding over formula memorization.
For those who find the book too challenging as a first pass, pair it with a simpler text (e.g., Hibbeler’s Mechanics of Materials ), then return to Singer for the advanced problems. That combination is unbeatable. Note: This article is for educational and informational purposes. Always respect copyright laws and obtain textbooks through authorized channels.
Measure your chest (A) and hips (B) following our indications.
The reference measurement will always be the larger of the two (A or B).
Look in the chart to which size corresponds to that measurement.
| Size | Reference measurements | |
|---|---|---|
| Inches | Centimeters | |
| 2XS | 25.6 – 29.4 | 65 – 74 |
| XS | 29.5 – 32.6 | 75 – 82 |
| S | 32.7 – 36.1 | 83 – 91 |
| M | 36.2 – 39.7 | 92 – 100 |
| L | 39.8 – 42.8 | 101 – 108 |
| XL | 42.9 – 46.3 | 109 – 117 |
| 2XL | 46.4 – 49.9 | 118 – 126 |
| 3XL | 50 – 53 | 127 – 134 |
| 4XL | 53.1 – 55.9 | 135 – 142 |