Go to the allaboutcircuits homepage. You can find Volumes I to VI of the free e-book near the top of the page. When you click on each volume you can either read it online or download a pdf file (click the pdf symbol on the right near the top of each page)
This free , 6 volume e-book is truly wonderful for everybody who wants to learn electronics from the start (but if you want to move forward a little faster, take a look at the Basic Electronics Tutorials by Storr). It does not assume any prior knowledge of electronics, physics or mathematics. In the second volume (about AC circuits) complex numbers are used, but the author introduces them very gently (without any mathematical rigor, he just explains what you need to know about them to understand AC circuits. For more info about using them, see Introductions to Complex Numbers ). But even if you do not want to make the effort to learn about complex numbers, you can still benefit from all other volumes of the book.
Even though the author has made a heroic effort to make the book as easy to understand as possible, of course you may encounter topics that you do not understand at first. In this case I strongly recommend that you ask you questions in the allaboutcircuits forum - it is a very friendly and helpful community.
If you like Kuphaldts e-book you should also take a look at the questions and answers in his Socratic Electronics Project. It is independent of the e-book, so there is no direct correspondence between the chapters in the e-book and the questions in Socratic Project. If you have read a chapter in the e-book just try to find the question that suit it best. And if you prefer videos, please take a look at the Video Lectures by Fiegenbaum - also a very easy introduction to electronics.
Strictly speaking, Kuphaldt is not the only author of the book. He is the author of the original Lessons-In-Electric-Circuits book, but the book has evolved into a collaborative effort. You can find the list of contributors at the end of each chapter. Some people have just contributed minor corrections, but others have added whole chapters (like the 555 chapter by Bill Marsden). If you find any errors in the book, you can report them in the Feedback and Suggestions Forum of allaboutcircuits and, if your corrections are accepted, you will be added to the list of contributors too.
You should also take a look at some recommendations for other books on practical analog electronics.
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