The series *Reading Concepts of Math Textbooks*, which rose to the top of the best-seller list immediately upon its release, was published in 8 volumes.

This series, which covers by grade math subjects taught in elementary, middle, and high school, previously featured books on numbers, arithmetic, circles, and right triangles. This time, the series publishes books on prime numbers, mathematical expressions, graphs, and area. In this way, the series includes the 8 core topics that appear repeatedly in math textbooks throughout grade school.

**Numbers: From Natural Numbers to Irrational Numbers**

*Reading Concepts in Math Textbooks – Numbers* contains all the number theory learned in elementary, middle, and high school. This installment does a broad survey of numbers, covering everything from the numbers that have been used since ancient times, such as natural numbers and fractions, all the way to negative numbers, rational and irrational numbers, and imaginary and complex numbers.

**Arithmetic: From Addition to Logarithms**

*Reading Concepts in Math Textbooks – Arithmetic* contains all of the types of arithmetic taught in grade school. This installment tells a fascinating story about mathematical symbols: why and how some, like the addition, subtraction, multiplication, and division sign are accepted, and why some symbols have been shunned by mathematicians.

**Circles: From Points to Equations Describing Circles**

*Reading Concepts in Math Textbooks – The Circle *includes all of the concepts related to circles that students learn during grade school, from the very definition of circles to the mathematical equations that describe them. This installment starts by explaining how ancient astronomers came to define the concept of a circle and continues explaining concepts about circles by relating it to the science of observing constellations.

**The Right Triangle: From Angles to Trigonometry**

*Reading Concepts in Math Textbooks – The Right Triangle *covers everything about triangles learned in grade school, from right triangles to trigonometric graphs.

**Prime numbers: From Divisors to Factorization**

*Reading Concepts in Math Textbooks –* *Prime Numbers* covers prime numbers: numbers whose only divisors are itself and 1. First going over division and divisors, the book also explains the concept of prime numbers and how they are found.

**Mathematical Expressions: From Symbols to Equations**

*Reading Concepts in Math Textbooks – Mathematical Expressions* contains everything about mathematical expressions, from how they are formed, to their various types and how to solve them. The book begins first by explaining symbols, terms, and exponents.

**Graphs: From Bar Charts to Derivatives**

*Reading Concepts in Math Textbooks – Graphs* covers many of the graphs taught in grade school. This book covers a wide range of graphs, including graphs made for organizing data, like bar charts, line graphs, and pie charts, all the way to graphing shapes, functions, and derivatives, which are necessary for describing how graphs change.

**Area: From Meters to Definite Integrals**

*Reading Concepts in Math Textbooks – Area* connects several concepts related to area. This installment explores all the basic concepts of area, from the idea of squares as the standard for area and square meters, all the way to the formulas that give the area of triangles and squares.