Reddit mentions of Introduction to Psychology

Hello. For general introduction these books (here, here) are popular picks. They are revised every few years and include new findings accordingly. (here is the link to the free e-book) You can continue reading into the disciplines you find interesting. I definitely recommend sticking to the history of psychology, how it historically developed and branched out of modern philosophy. The reason for reason for this is because you need to be able to engage psychology philosophically in order to interpret what underlies psychological findings. Also most of the early psychologists were philosophers, not scientists. (one might be interested to trace all the way back to Greek philosophers, by that I mean "Read classics!") You will learn about some of the precursors of psychology in the books I mentioned.

One can find excellent lectures on Psychology online these days for free so you might want to check them out. (Yale University has a popular course on introductory psychology)

Also what type of field in Psychology interest you? (Animal Behavior, Biology, Neuroscience, Sociology, Clinical Psychology, Developmental, Culture/Religion, Language, Psychoanalysis, Cognition)

Here are some of my personal recommendations.

1. A History of Personality Psychology - Frank Dumont (2010)
   
2. Discovery of the Unconscious - Henri Ellenberger (1994)
   
3. Fifty Key Thinkers in Psychology - Noel Sheehy
   
4. Statistics - David Hand
   
5. Factor Analysis - Richard L. Gorsuch (if you are interested in the scientific end of psychology, especially research fields, learning statistical tools like factor analysis will help greatly)
   
6. Little Science, Big Science, and Beyond - Derek Solla Price (1986)
   
7. Anxiety - Daniel Freeman & Jason Freeman
   
8. Perception - Brian Rogers
   
9. The Emotional Brain - Joseph Ledoux (1998)
   
10. Cognitive Neuroscience꞉ The Biology of the Mind (2019)