Calculus and Analytic Geometry by George B. Thomas, Ross L. Finney is a very important book in undergraduate programs. It is a very reliable source for learning Calculus from scratch. This wonderful book will also explain you from the basic to the advanced level of Calculus. It is providing problem-solving strategies for helping the students that can give a better hold and understanding of various new problem-solving techniques in Calculus. Moreover, it is a clear and precise text with superior applications for the modern-day technologies. Calculus and Analytic Geometry is specifically written for the students so it is known as the best course book as well as taught in various universities. Each chapter has precise examples and exercises to make the concepts even more clear. The ninth edition is the proven text, although, various new versions are also there in the market, still, it is the most reliable and widely used book. It provides solid grounds and the concise information necessary to learn mathematics, science, and engineering problems. Furthermore, it also discusses the innovations in the technology as well as the best environment for teaching and learning calculus.

“A Portrait of Linear Algebra Third Edition” is a complete book on Linear Algebra. The Mathematician behind this book is Jude Thaddeus Socrates. His book “A Portrait of Linear Algebra” takes a unique approach in developing and introducing the core concepts of this subject. It begins with a thorough introduction to the field properties for real numbers and uses them to guide the student through simple proof exercises. Over 500 new exercises have been added since the 2nd edition. There are 9 chapters in the book. Core concepts of linear combinations, spans of sets of vectors, linear independence, subspaces, basis, and dimension, are introduced in the first chapter. In next chapters, the author explores some applications of Linear Algebra in science and engineering. These applications enable readers to prove The Fundamental Theorem of Linear Algebra, an elegant theorem that ties together the four fundamental matrix spaces and the concepts of eigenspaces and orthogonality. Overall, it is a great resource for learning the core concepts of Linear Algebra. You can also Download Calculus and Analytic Geometry (9th Edition) by George B. Thomas, Ross L. Finney Free.

Integral Equation Methods in Inverse Scattering Theory by David Colton, Rainer Kress is a classic book providing the complete knowledge of the Riesz-Fredholm theory on scalar and vector potentials in spaces of Holder continuous and continuous functions. This is the theory of compact operators in dual systems. It also explains the mapping properties and the jump relations of vector and scalar potentials. The results are useful for studying the scattering problems for the Maxwell and Helmholtz equations. You will get an in-depth understanding of the boundary integral equations for solving acoustic and electromagnetic waves problems. Moreover, this book also provides a complete introduction to inverse scattering theory emphasizing on nonlinearity of the inverse problems. This wonderful book is also a supplement to graduate course on inverse problems and scattering theory. It is a great research topic for mathematicians, physicists, and engineers.

If you are a Spanish speaker and you want to learn English then “English: Verbs Fast Track Learning for Spanish Speakers by Sarah Retter” is the best book for you. It includes 100 English verbs and 3600 phrases including past, present, and future tenses. Now you can focus on the most used English verbs and learn 100 of them you will need in everyday life with minimum effort. This book will enable you to talk about past, present, and future. You will also come to know about the usual mistakes in the spoken language. Also, it is the best book for the students who want to learn English. In addition, with this most usual verbs, you will be able to easily communicate in English. Click on the below-given link to download English: Verbs Fast Track Learning for Spanish Speakers by Sarah Retter complete Audio CD. It is the best environment for Spanish speakers to learn English.

There are different stories and different trends of different countries. My French Country Home: Entertaining Through the Seasons by Sharon Santoni is about the French people. The author was born in France and has a close look at the French culture. In this book, she reveals the gracious French way of entertaining the guests at her countryside home. It is a book on the personal stories of the French lifestyle, the mesmerizing photos will take you there. The author creates bouquets from her garden and makes use of the resources from the nature around her to fill up the tables in her house. The story includes Sunday morning breakfasts, lunch in the garden, and a formal dinner in the dining room. You will find inspirations for your tables and will make you do something extra to greet your special guests in different seasons. Not only this, Santoni also shares some of her favorite recipes consuming the seasonal foods. This is a great book for the housewives who want to make their homes blushing and want to do something extra for the guests.

Old medieval cathedrals, parish churches, and abbeys have a fascinating architecture with galleries, spiral stairs, and upper chambers. It is a true fascination for scholars and architects since the eighteenth century. We don’t know the reason behind these secret stairs, hidden upper rooms, and the mysterious galleries. Stairway to Heaven: The Functions of Medieval Upper Spaces by Toby Huitson is pure architecture book for professional architects and the people who have interests in this field. This book provides the evidence of the practical functions of these secret stairs and the upper galleries from c. 1000 to 1550. It is revealed through the medieval visuals, artistic media, and the documentary ever combined for it. These will be taking the treasuries to dovecotes, secret games of the skittles, and the libraries to the light of the twelfth century ‘Flying monk’ The author considers these topics with different other related ones to offer a new radical understanding of the medieval functions. This book is written for the professionals and the people who have a strong background of medieval cathedrals. You will come to know about the secret stairways and the galleries of the cathedrals and churches.