There is some discussion of the differences in the two editions in https://news.ycombinator.com/item?id=4665466 as well as the reviews on Amazon. I am going to give the updated version a try.
But I have personally found these books with extreme limited vocabulary to be much better read-aloud books for 2-year-olds than books for independent reading by 4–5 year-olds. More generally, many other graded readers are excellent read-aloud books. At age 2–3, my kids particularly enjoyed the Henry and Mudge books https://www.amazon.com/dp/1534427139, and everything by Arnold Lobel.
If you are trying to teach kids to read, let me highly recommend Bloomfield’s workbook Let’s Read from the early 60s, which I heard about from a 2012 comment here on HN by Tokenadult. https://www.amazon.com/dp/0814311156 https://news.ycombinator.com/item?id=4665466
Bloomfield was one of the leading linguists of his era, and his book is very carefully structured to introduce only one new spelling–sound association per lesson, with the first half consisting of only regularly spelled words, so there is no possible confusion, with the full mishmash of irregular words only introduced after the reader is already fluent with regular spellings.
My son & I started working through it together for about 10–15 minutes per day when he was 3.5 years old, and it took about 8 months to get to the end, after which he could fluently read pretty much any material he could comprehend. As a not-quite-5 year-old he now happily independently reads books intended for 3rd–4th graders. (I’m not trying to suggest every kid should start on such a project at that age; every kid is different, and interests and attention span vary.)
I got the recommendation here in HN and I used the book with my 2 daughters. I started with my first daughter when she was 4.5 years old. I started with my second daughter at an older age because she was showing a slight case of dyslexia. It took 2 years to finish the book with each of them. After they were done they could read everything. My second daughter is 9 and is almost done with Oliver Twist. Read this comment by tokenadult: https://news.ycombinator.com/item?id=4665466
In general, early reading is less remarkable (in English) than people think it is, because with the right materials[1] English can be seen by a young learner as a rather consistent writing system that is not insuperably hard to decode.
That said, my four homeschooled children, the first two of whom are strongly bilingual in Chinese and English, having lived in Taiwan in early childhood, were early but not strikingly precocious readers, and all my children were learning a lot of other things besides reading in their early childhood, of which chess was perhaps more conspicuously precocious than reading. Earliness is less important than long-term solid development of skill, and it sounds like the parents of some of the HN participants here who have personally observed examples of very precocious reading were well aware of that.
[1] http://www.amazon.com/Teach-Your-Child-Read-Minutes-ebook/dp...
http://www.amazon.com/Lets-Read-Linguistic-Leonard-Bloomfiel...
http://eps.schoolspecialty.com/products/details.cfm?serieson...
1) As a parent of English-speaking children, I thought it was VITAL that they learn well the main consistent sound-symbol correspondence rules of English spelling. (This is called "phonics" in the context of teaching reading to native speakers of English.) My favorite book recommendation for this is Let's Read: A Linguistic Approach, by linguist Leonard Bloomfield and lexicographer Clarence Barnhart. All four of my children learned to read well with this book. The book is now in a second edition
http://www.amazon.com/Lets-Read-A-Linguistic-Approach/dp/081...
prepared by a second generation of the Barnhart family. Learning to read with an approach like this is dialect-friendly (the book is specifically organized to take into account dialect differences, at least within American English) and systematic for understanding what is consistent in English spelling and what is not.
2) As for spelling reform in English, I think it was HN user gnosis who once shared a very interesting link
http://www.xibalba.demon.co.uk/jbr/ortho.html
about English spelling reform by a commentator who knows linguistics well. English spelling reform is often desired by native speakers of the language, but it is a tough problem. See what the link has to say about various proposals for spelling reform.
http://wsupress.wayne.edu/slp/bloomfieldlr.htm
http://www.amazon.com/Lets-Read-A-Linguistic-Approach/dp/081...
by Leonard Bloomfield (an eminent linguist and pioneer of new methods of teaching hard-to-learn languages) and Clarence L. Barnhart (a lexicographer) has now been revised by Cynthia A. Barnhart and Robert K. Barnhart (I presume they are the original co-author's children). I used the first edition, and can recommend it UNRESERVEDLY. The first edition appears to no longer be in print, and some Amazon reviewers say they prefer the first edition, but the second edition, currently available, surely is better than the great mass of school materials used for English reading instruction. How I used the book is to set a goal of somewhere between one lesson a day and six or seven pages a day, and then read each lesson out loud to my child, with my child then reading the lesson back to me, with adaptation earlier in the book to do the reading and reading back a sentence at a time, and near the end of the book for the child to read by himself or herself without me reading first. All my children are strong readers who love to read. You'll find that this book, under Bloomfield's pedagogical influence, makes good use of spaced repetition of the key sound-symbol correspondences in Engish. But this is reading connected text, rather than just looking at flash cards, and the stories are remarkably interesting for their carefully graded vocabulary.
More details if you like. My main online involvement in the early 1990s was discussion of optimal reading instruction approaches for United States schools, but now I've discovered that mathematics education needs at least as much help, and have shifted focus to that. But I could provide (old) links to rationale for this approach if you like, and anyway an ounce of inexpensive prevention is worth a pound of expensive cure when helping a child's initial reading instruction prevents future reading and spelling difficulties. And kudos to you for continuing to read aloud to your child as he learns to read. Not reading to children beyond school age is one of the big missed opportunities in many middle-class families.
Aside to other participants: I'm wondering how many people who have used flash cards for foreign language learning have put their languages to the test in a country where those languages are spoken. I have studied many languages (I think there is a partial list in my user profile), and what I have observed over and over is how each language maps reality in a different way, so that ones rarely correspond one-to-one in the manner expected by flashcards. I much preferred learning to read Chinese, for example, by using the excellent Chinese Reader series by John DeFrancis
http://www.amazon.com/Beginning-Chinese-Reader-Part/dp/03000...
through which I first learned about Bloomfield's approach to foreign language teaching. (DeFrancis was a student of Bloomfield's.)
http://www.amazon.com/Lets-Linguistic-Approach-Leonard-Bloom...
Then they are at liberty to read whatever they want, whenever they want. Fitting today's generation of readers, they all read a lot of "high fantasy" (Tolkein, C.S. Lewis, J.K. Rowling, etc.) and plenty of nonfiction on favorite subjects (e.g., mathematics, biology, history) but they are also well able and willing to read classic novels. I do get the impression, from observing what children in our community check out when they visit the local library, and from observing how infrequently some of them visit the local library, that Dickens is considered challenging reading in today's world. See also
http://www.pacinfo.com/~handley/orsig/highschool.html
for the suggestion that Oliver Twist is a senior-high-level book, which would be surprising to any of my four children.
http://www.amazon.com/Lets-Linguistic-Approach-Leonard-Bloom...
I like the stories in that book, too, especially the very last story.
http://www.amazon.com/Lets-Linguistic-Approach-Leonard-Bloom...
http://www.dundee.ac.uk/pressreleases/proct02/dyslexics.html
(I looked this up to get a better idea which countries were considered, and which were not.)
Excerpt from a good book on dyslexia by some of the leading researchers in the field:
Interpreting that as a request to name the textbooks I find useful, I'll do that here.
Elementary mathematics:
Primary Mathematics
http://www.singaporemath.com/Primary_Math_s/21.htm
and
Miquon Math
http://www.keypress.com/x6252.xml
Secondary mathematics:
The Gelfand Correspondence Program series
http://www.amazon.com/Algebra-I-M-Gelfand/dp/0817636773
http://www.amazon.com/Functions-Graphs-Dover-Books-Mathemati...
http://www.amazon.com/Method-Coordinates-I-M-Gelfand/dp/0817...
http://www.amazon.com/Trigonometry-I-M-Gelfand/dp/0817639144...
http://www.amazon.com/Sequences-Combinations-Limits-Library-...
and
Basic Mathematics by Serge Lang
http://www.amazon.com/Basic-Mathematics-Serge-Lang/dp/038796...
and
The Art of Problem Solving expanded series
http://www.artofproblemsolving.com/Books/AoPS_B_Texts_FAQ.ph...
When a student has those materials well in hand, it is time to work on AMC and Olympiad style problem solving,
http://www.artofproblemsolving.com/Books/AoPS_B_CP_AMC.php
http://www.artofproblemsolving.com/Books/AoPS_B_CP_Olympiad....
and also the best calculus textbooks, such as those by Spivak or Apostol.
http://www.amazon.com/Calculus-Michael-Spivak/dp/0914098918/
http://www.amazon.com/Calculus-Vol-One-Variable-Introduction...
http://www.amazon.com/Calculus-Vol-Multi-Variable-Algebra-Ap...
Elementary reading:
By far the best initial reading text is
Let's Read: A Linguistic Approach
http://www.amazon.com/Lets-Linguistic-Approach-Leonard-Bloom...
but there are many other good reading series, including
Primary Phonics
http://www.epsbooks.com/dynamic/catalog/series.asp?seriesonl...
and
Teach Your Child to Read in Ten Minutes a Day
(I devote more time than that to reading instruction, typically, because I use multiple materials)
http://www.amazon.com/Teach-Your-Child-Read-Minutes/dp/14120...
and quite a few others. There is more junk than good stuff among elementary reading materials, alas.
http://www.amazon.com/Lets-Linguistic-Approach-Leonard-Bloom...
and the Miquon Math
http://www.keypress.com/x6252.xml
series.)
So I guide my children's activities, but they have a lot of free time and a lot of control over how they spend their time. I like promoting QUIET activities like drawing and reading, because much of my work is done at home.
Actually, Ph.D.s in education have done a generally appalling job of researching how children learn to read. There are a few happy exceptions, but I would look more to Ph.D.s in linguistics or psychology (harder disciplines, and more evidence-based, than education in general) for advice on how to teach children to read.
Here are some sound resources on reading instruction:
http://www.amazon.com/Lets-Linguistic-Approach-Leonard-Bloom...
http://www.amazon.com/Language-Development-Learning-Read-Sci...
http://www.amazon.com/Overcoming-Dyslexia-Complete-Science-B...
So, yes, the problem with introducing programming into the K-12 curriculum is
a) figuring out how to teach it well to learners of that age of varying backgrounds and interest levels, and
b) figuring out what else gets crowded out of the curriculum.
I snagged a used copy for $70 because I wanted to compare it to the newer 2nd edition which is way more affordable [0].
[0] https://www.amazon.com/Lets-Read-Linguistic-Clarence-Barnhar...